feat: added AvaloniaEdit for the text editor with basic highlight an line count, better "about" dialog and adde textmate

GsaEditor/bin/Debug/net8.0/GsaEditor.deps.json

@@ -9,10 +9,12 @@
       "GsaEditor/1.0.0": {
         "dependencies": {
           "Avalonia": "11.3.6",
+          "Avalonia.AvaloniaEdit": "11.3.0",
           "Avalonia.Desktop": "11.3.6",
           "Avalonia.Diagnostics": "11.3.6",
           "Avalonia.Fonts.Inter": "11.3.6",
           "Avalonia.Themes.Fluent": "11.3.6",
+          "AvaloniaEdit.TextMate": "11.3.0",
           "CommunityToolkit.Mvvm": "8.2.1",
           "GsaEditor.Core": "1.0.0"
         },
@@ -92,6 +94,17 @@
           }
         }
       },
+      "Avalonia.AvaloniaEdit/11.3.0": {
+        "dependencies": {
+          "Avalonia": "11.3.6"
+        },
+        "runtime": {
+          "lib/net6.0/AvaloniaEdit.dll": {
+            "assemblyVersion": "11.3.0.0",
+            "fileVersion": "11.3.0.0"
+          }
+        }
+      },
       "Avalonia.BuildServices/0.0.31": {},
       "Avalonia.Controls.ColorPicker/11.3.6": {
         "dependencies": {
@@ -250,6 +263,20 @@
           }
         }
       },
+      "AvaloniaEdit.TextMate/11.3.0": {
+        "dependencies": {
+          "Avalonia": "11.3.6",
+          "Avalonia.AvaloniaEdit": "11.3.0",
+          "TextMateSharp": "1.0.65",
+          "TextMateSharp.Grammars": "1.0.65"
+        },
+        "runtime": {
+          "lib/net6.0/AvaloniaEdit.TextMate.dll": {
+            "assemblyVersion": "11.3.0.0",
+            "fileVersion": "11.3.0.0"
+          }
+        }
+      },
       "CommunityToolkit.Mvvm/8.2.1": {
         "runtime": {
           "lib/net6.0/CommunityToolkit.Mvvm.dll": {
@@ -366,6 +393,56 @@
           }
         }
       },
+      "Onigwrap/1.0.6": {
+        "runtime": {
+          "lib/netstandard2.0/Onigwrap.dll": {
+            "assemblyVersion": "1.0.6.0",
+            "fileVersion": "1.0.6.0"
+          }
+        },
+        "runtimeTargets": {
+          "runtimes/linux-arm64/native/libonigwrap.so": {
+            "rid": "linux-arm64",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/linux-musl-arm64/native/libonigwrap.so": {
+            "rid": "linux-musl-arm64",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/linux-musl-x64/native/libonigwrap.so": {
+            "rid": "linux-musl-x64",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/linux-x64/native/libonigwrap.so": {
+            "rid": "linux-x64",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/osx/native/libonigwrap.dylib": {
+            "rid": "osx",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/win-arm64/native/libonigwrap.dll": {
+            "rid": "win-arm64",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/win-x64/native/libonigwrap.dll": {
+            "rid": "win-x64",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          },
+          "runtimes/win-x86/native/libonigwrap.dll": {
+            "rid": "win-x86",
+            "assetType": "native",
+            "fileVersion": "0.0.0.0"
+          }
+        }
+      },
       "SkiaSharp/2.88.9": {
         "dependencies": {
           "SkiaSharp.NativeAssets.Win32": "2.88.9",
@@ -442,6 +519,31 @@
           }
         }
       },
+      "System.Text.Json/8.0.5": {},
+      "TextMateSharp/1.0.65": {
+        "dependencies": {
+          "Onigwrap": "1.0.6",
+          "System.Text.Json": "8.0.5"
+        },
+        "runtime": {
+          "lib/netstandard2.0/TextMateSharp.dll": {
+            "assemblyVersion": "1.0.65.0",
+            "fileVersion": "1.0.65.0"
+          }
+        }
+      },
+      "TextMateSharp.Grammars/1.0.65": {
+        "dependencies": {
+          "System.Text.Json": "8.0.5",
+          "TextMateSharp": "1.0.65"
+        },
+        "runtime": {
+          "lib/netstandard2.0/TextMateSharp.Grammars.dll": {
+            "assemblyVersion": "1.0.65.0",
+            "fileVersion": "1.0.65.0"
+          }
+        }
+      },
       "Tmds.DBus.Protocol/0.21.2": {
         "dependencies": {
           "System.IO.Pipelines": "8.0.0"
@@ -483,6 +585,13 @@
       "path": "avalonia.angle.windows.natives/2.1.25547.20250602",
       "hashPath": "avalonia.angle.windows.natives.2.1.25547.20250602.nupkg.sha512"
     },
+    "Avalonia.AvaloniaEdit/11.3.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-9M/jJb4DPqQmKtNMZn6+vpqlf+ZGMtK8vEBpPVP3De1xRCu1hv4ZAtoA8hY6bYj2hgv/luete3ixoOsEQ++YJQ==",
+      "path": "avalonia.avaloniaedit/11.3.0",
+      "hashPath": "avalonia.avaloniaedit.11.3.0.nupkg.sha512"
+    },
     "Avalonia.BuildServices/0.0.31": {
       "type": "package",
       "serviceable": true,
@@ -574,6 +683,13 @@
       "path": "avalonia.x11/11.3.6",
       "hashPath": "avalonia.x11.11.3.6.nupkg.sha512"
     },
+    "AvaloniaEdit.TextMate/11.3.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-9yDE7JUGZxWLo5eqhd6FXMHgj4EH2NOQxL030Vja6SBYX5wiLR8Pk67A8DtIabb0tpvEEDPWBBasN70OhjUiwg==",
+      "path": "avaloniaedit.textmate/11.3.0",
+      "hashPath": "avaloniaedit.textmate.11.3.0.nupkg.sha512"
+    },
     "CommunityToolkit.Mvvm/8.2.1": {
       "type": "package",
       "serviceable": true,
@@ -623,6 +739,13 @@
       "path": "microcom.runtime/0.11.0",
       "hashPath": "microcom.runtime.0.11.0.nupkg.sha512"
     },
+    "Onigwrap/1.0.6": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-nqmemnwPFmcLPINSEUsbj/jdZ+vhaRMG3E7G/4yGwFEzWusfCgucutMsIKxRXLo0buon35uZeXadnnT6r8fuqQ==",
+      "path": "onigwrap/1.0.6",
+      "hashPath": "onigwrap.1.0.6.nupkg.sha512"
+    },
     "SkiaSharp/2.88.9": {
       "type": "package",
       "serviceable": true,
@@ -665,6 +788,27 @@
       "path": "system.io.pipelines/8.0.0",
       "hashPath": "system.io.pipelines.8.0.0.nupkg.sha512"
     },
+    "System.Text.Json/8.0.5": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-0f1B50Ss7rqxXiaBJyzUu9bWFOO2/zSlifZ/UNMdiIpDYe4cY4LQQicP4nirK1OS31I43rn062UIJ1Q9bpmHpg==",
+      "path": "system.text.json/8.0.5",
+      "hashPath": "system.text.json.8.0.5.nupkg.sha512"
+    },
+    "TextMateSharp/1.0.65": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-vwIPl5efIkYtVp+rewrn81Pjs3Vz0RbKJcjDjuRK/YUKsSMEADm4zVFnIWRrGe8LbM0ATpphwMr3G62PBOTrHA==",
+      "path": "textmatesharp/1.0.65",
+      "hashPath": "textmatesharp.1.0.65.nupkg.sha512"
+    },
+    "TextMateSharp.Grammars/1.0.65": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-ga+Uz5iyb75nuQY9hmALiWdeMkFZknJKrIvVDCrI3iZ0Ff9+tk0CqRKr0/KVR/Gg7MEY21cCtMYUbkBVczdwBA==",
+      "path": "textmatesharp.grammars/1.0.65",
+      "hashPath": "textmatesharp.grammars.1.0.65.nupkg.sha512"
+    },
     "Tmds.DBus.Protocol/0.21.2": {
       "type": "package",
       "serviceable": true,