convert to 8-bit option rename

Author: Cyclenerd

templates/index.html

@@ -60,7 +60,7 @@
                 <input type="checkbox" id="use_cache" name="use_cache">
                 <label for="use_cache">Enable offline mode</label><br>
                 <input type="checkbox" id="convert_to_8bit" checked>
-                <label for="convert_to_8bit">Convert to 8-bit for Meshtastic UI</label><br>
+                <label for="convert_to_8bit">Convert to 8-bit</label><br>
                 <button type="button" id="downloadBtn">💾 Download Tiles</button>
                 <button type="button" id="downloadWorldBtn">🗺️ Download World Basemap</button>
                 <button type="button" id="cancelBtn" disabled>❌ Cancel Download</button>