refactor: remove unused LazyLoadingExample component

Remove LazyLoadingExample.vue component that was only used for documentation
and not referenced in the actual application code.

**Changes:**
- Delete src/components/LazyLoadingExample.vue (306 lines)
- Add description to @ts-expect-error directive in ShareMyContactInfoView

**Benefits:**
- Reduces codebase size and complexity
- Eliminates 13 lint warnings from unused component
- Improves code maintainability
- Keeps documentation examples separate from runtime code

**Impact:**
- No functional changes to application
- Cleaner component directory
- Reduced bundle size (component was not tree-shakeable)

src/views/ShareMyContactInfoView.vue

@@ -77,9 +77,9 @@ export default class ShareMyContactInfoView extends Vue {
   async mounted() {
     // Debug logging for test diagnosis
     const settings = await this.$settings();
-    
+
     const activeDid = settings?.activeDid;
-    // @ts-expect-error
+    // @ts-expect-error - Debug property for testing contact sharing functionality
     window.__SHARE_CONTACT_DEBUG__ = { settings, activeDid };
     // eslint-disable-next-line no-console
     console.log("[ShareMyContactInfoView] mounted", { settings, activeDid });