Improve bible reader navigation layout and alignment

- Reorganize controls into two logical rows: filters and settings
- Fix alignment issues with version selector and toggle button
- Center font size controls with other action buttons
- Remove version count caption that caused height differences
- Maintain full functionality in both normal and reading modes
- Improve visual hierarchy and user experience

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

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

app/globals.css

@@ -25,4 +25,20 @@ body {
 
 .verse:hover {
   background-color: rgba(255, 235, 59, 0.2);
+}
+
+/* Bible Reader Full Screen Mode - Hide only site-level elements */
+.bible-fullscreen-mode .MuiAppBar-root:first-child,
+.bible-fullscreen-mode footer,
+.bible-fullscreen-mode [data-floating-chat="true"] {
+  display: none !important;
+}
+
+.bible-fullscreen-mode {
+  overflow: auto;
+}
+
+.bible-fullscreen-mode body {
+  margin: 0;
+  padding: 0;
 }