Fix IndentationError causing logged-in users to see no feed

The issue was caused by incorrect indentation in the community filtering logic (lines 451-468) which prevented the app from starting properly.

Fixed:
- Corrected 13-space indentation to 12 spaces for proper Python syntax
- Ensured consistent 4-space tab width throughout the block

This resolves the urgent issue where logged-in users couldn't see their feed.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -448,24 +448,24 @@ def api_posts():
             if platform and post_data.get('platform', '').lower() != platform.lower():
                 continue
 
-             # Apply user's community preferences (before filterset)
-             if user_communities:
-                 post_source = post_data.get('source', '').lower()
-                 post_platform = post_data.get('platform', '').lower()
+            # Apply user's community preferences (before filterset)
+            if user_communities:
+                post_source = post_data.get('source', '').lower()
+                post_platform = post_data.get('platform', '').lower()
 
-                 # Check if this post matches any of the user's selected communities
-                 matches_community = False
-                 for selected_community in user_communities:
-                     selected_community = selected_community.lower()
-                     # Match by exact source name or platform name
-                     if (post_source == selected_community or
-                         post_platform == selected_community or
-                         selected_community in post_source):
-                         matches_community = True
-                         break
+                # Check if this post matches any of the user's selected communities
+                matches_community = False
+                for selected_community in user_communities:
+                    selected_community = selected_community.lower()
+                    # Match by exact source name or platform name
+                    if (post_source == selected_community or
+                        post_platform == selected_community or
+                        selected_community in post_source):
+                        matches_community = True
+                        break
 
-                 if not matches_community:
-                     continue
+                if not matches_community:
+                    continue
 
             # Apply search filter (before filterset)
             if search_query: