Redesign interface across member dashboard and events pages

The changes involve a comprehensive interface redesign across multiple
pages, including:

- Updated peer support badge with shield design
- Switched privacy toggle to use USwitch component
- Added light/dark mode support throughout
- Enhanced layout and spacing in default template
- Added series details page with timeline view
- Improved event cards and status indicators
- Refreshed member profile styles for better readability
- Introduced global cursor styling for interactive elements

assets/css/main.css

@@ -0,0 +1,14 @@
+/* Global cursor pointer for all buttons and links */
+button:not(:disabled):not([aria-disabled="true"]),
+[role="button"]:not(:disabled):not([aria-disabled="true"]),
+a[href] {
+  cursor: pointer !important;
+}
+
+/* Ensure disabled buttons show not-allowed cursor */
+button:disabled,
+button[aria-disabled="true"],
+[role="button"]:disabled,
+[role="button"][aria-disabled="true"] {
+  cursor: not-allowed !important;
+}