Align lint fixes with main and resolve merge conflicts

- Convert biome-ignore to oxlint-disable-next-line across client app
- Fix no-base-to-string with type narrowing instead of suppressions
- Fix no-floating-promises with fireAndForget() in proxy app
- Fix restrict-template-expressions with String() wrapping
- Resolve leftover merge conflict markers in manager.rs
- Remove duplicate cmd_plugin_init_errors from lib.rs
- Add graphql as explicit dependency in yaak-client

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/theme/src/appearance.ts

@@ -18,7 +18,7 @@ export function subscribeToWindowAppearanceChange(
     unsubscribe: () => {},
   };
 
-  getCurrentWebviewWindow()
+  void getCurrentWebviewWindow()
     .onThemeChanged((theme) => {
       cb(theme.payload);
     })
@@ -39,6 +39,6 @@ export function resolveAppearance(
 
 export function subscribeToPreferredAppearance(cb: (appearance: Appearance) => void) {
   cb(getCSSAppearance());
-  getWindowAppearance().then(cb);
+  void getWindowAppearance().then(cb);
   subscribeToWindowAppearanceChange(cb);
 }