[mirotalksfu] - add new theme

public/views/Room.html

@@ -1087,6 +1087,7 @@ access to use this app.
                         </div>
                         <br />
                         <select id="selectTheme" class="form-select text-light bg-dark">
+                            <option value="elegant">🔘 &nbsp;Elegant</option>
                             <option value="dark">⚫ &nbsp;Dark</option>
                             <option value="grey">⚪ &nbsp;Grey</option>
                             <option value="green">🟢 &nbsp;Green</option>