fix(mobile): improve refresh button - float over all tabs, add animation, fix focus

**Changes:**
1. Move button to float over all tabs (not just Stats)
   - Removed from userStats.js HTML
   - Added to template.html as floating absolute element
   - Now visible on Status, Info, and Inventory tabs

2. Fix sticky black focus state
   - Added :focus { outline: none } to CSS
   - Call blur() after click to clear focus immediately

3. Add refresh animation
   - Button spins during updateRPGData() call
   - Smooth 0.8s rotation with @keyframes
   - Uses .spinning class added/removed in JS

4. Improve theming and positioning
   - Positioned absolute top-right (10px, 10px)
   - Increased to 44px for better touch target
   - z-index: 100 to float above content
   - Already uses theme colors (--rpg-highlight, --rpg-text)

Mobile UX now:
✅ Button visible on all tabs (floating)
✅ Spins smoothly when refreshing
✅ No sticky black state after tap
✅ Properly themed across all themes

src/systems/rendering/userStats.js

@@ -61,9 +61,6 @@ export function renderUserStats() {
                     <span style="opacity: 0.5;">|</span>
                     <span class="rpg-level-label">LVL</span>
                     <span class="rpg-level-value rpg-editable" contenteditable="true" data-field="level" title="Click to edit level">${extensionSettings.level}</span>
-                    <button id="rpg-manual-update-mobile" class="rpg-refresh-icon-btn" title="Refresh RPG Info">
-                        <i class="fa-solid fa-sync"></i>
-                    </button>
                 </div>
                 <div class="rpg-stats-grid">
                     <div class="rpg-stat-row">