[mirotalksfu] - improve invite btn UI

public/css/Room.css

@@ -645,7 +645,15 @@ button:hover {
 } */
 
 #inviteParticipants {
-    margin: 15px 0px 0px 5px;
+    width: 100%;
+    padding: 10px;
+    margin: 10px auto 0px auto;
+    background-color: #191919;
+    border-radius: 10px;
+}
+#inviteParticipants:hover {
+    color: #fff;
+    transform: scale(1);
 }
 
 #searchParticipants {

public/js/Room.js

@@ -1538,7 +1538,7 @@ async function getParticipantsTable(peers) {
         <button
             id="inviteParticipants"
             onclick="shareRoom();"
-        ><i class="fas fa-user-plus"></i> Invite Someone</button>
+        ><i class="fas fa-user-plus"></i>&nbsp; Invite Someone</button>
     </div>
     <div>
         <input