feat: Added hover styles and added tabIndex to the meeting list container instead of the meeting item header (#15429)

* added hover styles and added tabIndex to the container instead of the meeting heading

* lint error fix

css/_meetings_list.scss

             cursor: pointer;
         }
 
-        &.with-click-handler:hover {
+        &.with-click-handler:hover,
+        &.with-click-handler:focus {
             background-color: #c7ddff;
         }
 

react/features/base/react/components/web/MeetingsList.tsx

             <Container
                 className = { rootClassName }
                 key = { index }
-                onClick = { onPress }>
+                onClick = { onPress }
+                tabIndex = { 0 }>
                 <Container className = 'right-column'>
                     <Text
                         className = 'title'
                         onClick = { onPress }
                         onKeyPress = { onKeyPress }
-                        role = 'button'
-                        tabIndex = { 0 }>
+                        role = 'button'>
                         { title }
                     </Text>
                     {