chore: Updated to Theia 1.31.1 (#1662)

Closes #1655
Closes #1656

Signed-off-by: Akos Kitta <a.kitta@arduino.cc>

arduino-ide-extension/src/browser/theia/monaco/monaco-theming-service.ts

@@ -0,0 +1,23 @@
+import { injectable } from '@theia/core/shared/inversify';
+import { MonacoThemingService as TheiaMonacoThemingService } from '@theia/monaco/lib/browser/monaco-theming-service';
+import { ArduinoThemes } from '../core/theming';
+
+@injectable()
+export class MonacoThemingService extends TheiaMonacoThemingService {
+  override initialize(): void {
+    super.initialize();
+    const { Light, Dark } = ArduinoThemes;
+    this.registerParsedTheme({
+      id: Light.id,
+      label: Light.label,
+      uiTheme: 'vs',
+      json: require('../../../../src/browser/data/default.color-theme.json'),
+    });
+    this.registerParsedTheme({
+      id: Dark.id,
+      label: Dark.label,
+      uiTheme: 'vs-dark',
+      json: require('../../../../src/browser/data/dark.color-theme.json'),
+    });
+  }
+}