Don't interfere with file indent configuration

src/components/codemirrorHooks/extensions.ts

@@ -508,12 +508,14 @@ export function useExtensions({
     }, [fileIndentUnit, editorRef.current, justCreated])
 
     useEffect(() => {
+      if (settings.tabSize != undefined) {
         editorRef.current.view?.dispatch({
             effects: indentCompartment.reconfigure([
                 indentUnit.of(" ".repeat(Number(settings.tabSize))), 
                 EditorState.tabSize.of(Number(settings.tabSize))
             ]),
         })
+      }
     }, [settings.tabSize, editorRef.current, justCreated])
 
     return globalExtensions

src/features/window/state.ts

@@ -300,7 +300,7 @@ export interface Settings {
     useFour: string
     contextType: string
     textWrapping: string
-    tabSize: string
+    tabSize?: string
 }
 
 export interface SettingsState {
@@ -401,7 +401,7 @@ export const initialSettingsState = {
         useFour: 'disabled',
         contextType: 'none',
         textWrapping: 'disabled',
-        tabSize: '2'
+        tabSize: undefined
     },
 }