[mirotalksfu] - add blue theme

public/views/Room.html

@@ -330,6 +330,7 @@ access to use this app.
                         <option value="dark">⚫ &nbsp;Dark</option>
                         <option value="grey">⚪ &nbsp;Grey</option>
                         <option value="green">🟢 &nbsp;Green</option>
+                        <option value="blue">🔵 &nbsp;Blue</option>
                     </select>
                     <br />
                     <p>Buttons bar:</p>