[mirotalksfu] - fix typo

public/js/Room.js

@@ -4096,7 +4096,7 @@ function setTheme() {
     selectTheme.selectedIndex = localStorageSettings.theme;
     const theme = selectTheme.value;
     switch (theme) {
-        case 'elegant':
+        case 'default':
             swalBackground = 'linear-gradient(135deg, #000000, #434343)';
             document.documentElement.style.setProperty('--body-bg', 'linear-gradient(135deg, #000000, #434343)');
             document.documentElement.style.setProperty('--trx-bg', 'linear-gradient(135deg, #000000, #434343)');

public/js/RtmpStreamer.js

@@ -263,7 +263,7 @@ function setCustomTheme() {
 
 function setTheme() {
     switch (theme) {
-        case 'elegant':
+        case 'default':
             document.documentElement.style.setProperty('--body-bg', 'linear-gradient(135deg, #000000, #434343)');
             document.documentElement.style.setProperty('--select-bg', '#333333');
             document.documentElement.style.setProperty('--btns-bg-color', 'rgba(0, 0, 0, 0.7)');

public/views/Room.html

@@ -1124,7 +1124,7 @@ 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="default">🔘 &nbsp;Default</option>
                             <option value="dark">⚫ &nbsp;Dark</option>
                             <option value="grey">⚪ &nbsp;Grey</option>
                             <option value="green">🟢 &nbsp;Green</option>