chore: revert resource index drift

Agent-Logs-Url: https://github.com/ThisIs-Developer/Markdown-Viewer/sessions/94cd9670-b3c4-4df4-955b-5d2cc71ac585

Co-authored-by: ThisIs-Developer <109382325+ThisIs-Developer@users.noreply.github.com>

Author: Copilot

desktop-app/resources/index.html

@@ -234,9 +234,6 @@ <h5>Menu</h5>
                                 <i class="bi bi-share me-2"></i> Share
                             </button>
 
-                            <button id="mobile-direction-toggle" class="mobile-menu-item" title="Toggle RTL/LTR">
-                                <i class="bi bi-text-right me-2"></i> Switch to RTL
-                            </button>
                             <button id="mobile-theme-toggle" class="mobile-menu-item" title="Toggle Dark Mode">
                                 <i class="bi bi-moon me-2"></i> Dark Mode
                             </button>
@@ -276,7 +273,6 @@ <h5>Menu</h5>
             <button type="button" class="markdown-tool-btn" data-md-action="align-left" title="Align left" aria-label="Align left"><i class="bi bi-text-left"></i></button>
             <button type="button" class="markdown-tool-btn" data-md-action="align-center" title="Align center" aria-label="Align center"><i class="bi bi-text-center"></i></button>
             <button type="button" class="markdown-tool-btn" data-md-action="align-right" title="Align right" aria-label="Align right"><i class="bi bi-text-right"></i></button>
-            <button type="button" id="direction-toggle" class="markdown-tool-btn text-tool" title="Switch to RTL" aria-label="Toggle text direction" aria-pressed="false">L</button>
           </div>
           <div class="markdown-toolbar-group heading-group">
             <button type="button" class="markdown-tool-btn text-tool" data-md-action="heading" data-md-level="1" title="Heading 1" aria-label="Heading 1">H1</button>