fix: avatar now flush at bottom, logout stays visible

- Removed bottom padding so avatar sits at the very bottom edge
- Logout icon kept visible in collapsed mode (was hidden before)
- Cleaned up collapsed footer layout

Author: ddrayko

public/css/style.css

@@ -532,16 +532,12 @@ cap-widget {
 
 .sidebar.collapsed .sidebar-footer {
   border-top: none;
-  padding: 0 0 12px;
-}
-
-.sidebar.collapsed #logout-btn {
-  display: none;
+  padding: 0;
 }
 
 .sidebar.collapsed .user-info {
   justify-content: center;
-  padding: 0;
+  padding: 4px 0;
 }
 
 .sidebar.collapsed .user-name,