Move graph view to individual pages and add user Graph tab

Changes made:
- Remove 'My Pages Graph' from homepage as requested
- Graph view now appears underneath each individual page (including edit mode)
- Add new 'Graph' tab to user profiles showing all interconnected pages
- Create UserGraphTab component for full user page connection graph
- UserGraphTab shows only actual link connections (no related pages)
- All user pages treated equally in the graph (no center node concept)
- Add fullscreen mode for better graph exploration
- Remove unused UserPagesGraphView component
- Update UserProfileTabs to include Graph tab in proper order

The graph view is now positioned where requested:
- Under each individual page (both view and edit modes)
- As a dedicated tab on user profiles for exploring all connections

Author: sirjamesgray

app/components/features/Home.tsx

@@ -20,7 +20,6 @@ import TimelineSection from "../timeline/TimelineSection";
 import EmailVerificationAlert from "../utils/EmailVerificationAlert";
 import EmptyState from "../ui/EmptyState";
 import { getEnvironmentType } from "../../utils/environmentConfig";
-import UserPagesGraphView from "../pages/UserPagesGraphView";
 
 // Recently Viewed Section Component - moved outside to prevent infinite re-renders
 const RecentPagesSection = () => {
@@ -246,9 +245,6 @@ const Home: React.FC = () => {
             {/* Daily Notes Section */}
             <DailyNotesSection />
 
-            {/* User Pages Graph View */}
-            <UserPagesGraphView />
-
             {/* Timeline Section */}
             <TimelineSection />