Fix duplicate export declarations and migrate ContactsView with sub-components

- Remove duplicate NOTIFY_INVITE_MISSING and NOTIFY_INVITE_PROCESSING_ERROR exports
- Update InviteOneAcceptView.vue to use correct NOTIFY_INVITE_TRUNCATED_DATA constant
- Migrate ContactsView to PlatformServiceMixin and extract into modular sub-components
- Resolves TypeScript compilation errors preventing web build

src/main.common.ts

@@ -10,7 +10,6 @@ import { FontAwesomeIcon } from "./libs/fontawesome";
 import Camera from "simple-vue-camera";
 import { logger } from "./utils/logger";
 
-
 // Global Error Handler
 function setupGlobalErrorHandler(app: VueApp) {
   app.config.errorHandler = (