[Build] Start refactor

build/tsconfig.json

@@ -0,0 +1,14 @@
+{
+    "$schema": "https://json.schemastore.org/tsconfig",
+    "compilerOptions": {
+        "experimentalDecorators": true,
+        "strict": true,
+        "target": "ES2022",
+        "module": "ES2022",
+        "moduleResolution": "Bundler",
+        // "checkJs": true,
+        // "allowJs": true,
+        "jsx": "react-jsx",
+        "jsxImportSource": "astal/gtk4",
+    }
+}