feat: enhance storage tab with node summary cards and improved UX

- Add node storage summary cards with condensed progress bars
- Show all storage per node with usage percentages and status indicators
- Add click-to-sort functionality for usage column
- Simplify content display (remove badges, use plain text)
- Add visual warnings for high usage storage (red/yellow indicators)
- Fix layout consistency with main tab (remove double containers)
- Improve spacing and visual hierarchy

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

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

Author: rcourtman

src/public/index.html

@@ -703,11 +703,11 @@
       </div>
     </div>
 
-    <div id="storage" class="tab-content hidden bg-white dark:bg-gray-800 rounded-b rounded-tr shadow p-3 mb-2">
-      <div class="table-container max-h-[80vh] overflow-y-auto overflow-x-auto mb-2 border border-gray-200 dark:border-gray-700 rounded overflow-hidden scrollbar">
-          <div id="storage-info-content">
-            <p class="text-gray-500 dark:text-gray-400 p-4 text-center">Loading storage data...</p>
-          </div>
+    <div id="storage" class="tab-content hidden bg-white dark:bg-gray-800 rounded-b rounded-tr shadow mb-2">
+      <div class="p-3">
+        <div id="storage-info-content">
+          <p class="text-gray-500 dark:text-gray-400 p-4 text-center">Loading storage data...</p>
+        </div>
       </div>
     </div>
     <div id="pbs" class="tab-content hidden bg-white dark:bg-gray-800 p-4 border border-t-0 border-gray-300 dark:border-gray-700 rounded-b-lg shadow-sm">