Update dashboard to show post history and allow direct photo uploads

Remove the calendar and analytics pages, and update the sidebar navigation. Add functionality for direct image uploads on the new post page. Update the favicon for the application.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ae4037a0-2a6f-4530-9bac-79b543286bda
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/397bca8c-984f-43ff-841a-10897aeb8140/ae4037a0-2a6f-4530-9bac-79b543286bda/G8GuKB7

client/src/App.tsx

@@ -12,7 +12,6 @@ import Calendar from "@/pages/calendar";
 import Media from "@/pages/media";
 import PagesManagement from "@/pages/pages";
 import AI from "@/pages/ai";
-import Analytics from "@/pages/analytics";
 import History from "@/pages/history";
 import Settings from "@/pages/settings";
 import SqlAdmin from "@/pages/sql";
@@ -71,7 +70,6 @@ function Router() {
       <Route path="/media">{() => <ProtectedRoute component={Media} />}</Route>
       <Route path="/pages">{() => <ProtectedRoute component={PagesManagement} />}</Route>
       <Route path="/ai">{() => <ProtectedRoute component={AI} />}</Route>
-      <Route path="/analytics">{() => <ProtectedRoute component={Analytics} />}</Route>
       <Route path="/history">{() => <ProtectedRoute component={History} />}</Route>
       <Route path="/settings">{() => <ProtectedRoute component={Settings} adminOnly />}</Route>
       <Route path="/sql">{() => <ProtectedRoute component={SqlAdmin} adminOnly />}</Route>