Apply prettier formatting

res/css/views/voip/_LegacyCallViewHeader.pcss

@@ -37,7 +37,7 @@ limitations under the License.
 
 .mx_LegacyCallViewHeader_secondaryCallInfo {
     &::before {
-        content: '·';
+        content: "·";
         margin-left: 6px;
         margin-right: 6px;
     }
@@ -55,7 +55,7 @@ limitations under the License.
     cursor: pointer;
 
     &::before {
-        content: '';
+        content: "";
         display: inline-block;
         height: 20px;
         width: 20px;
@@ -68,19 +68,19 @@ limitations under the License.
 
     &.mx_LegacyCallViewHeader_button_fullscreen {
         &::before {
-            mask-image: url('$(res)/img/element-icons/call/fullscreen.svg');
+            mask-image: url("$(res)/img/element-icons/call/fullscreen.svg");
         }
     }
 
     &.mx_LegacyCallViewHeader_button_pin {
         &::before {
-            mask-image: url('$(res)/img/element-icons/room/pin-upright.svg');
+            mask-image: url("$(res)/img/element-icons/room/pin-upright.svg");
         }
     }
 
     &.mx_LegacyCallViewHeader_button_expand {
         &::before {
-            mask-image: url('$(res)/img/element-icons/call/expand.svg');
+            mask-image: url("$(res)/img/element-icons/call/expand.svg");
         }
     }
 }
@@ -114,7 +114,7 @@ limitations under the License.
     vertical-align: middle;
 
     &::before {
-        content: '';
+        content: "";
         display: inline-block;
         vertical-align: top;
 
@@ -124,6 +124,6 @@ limitations under the License.
         mask-repeat: no-repeat;
         mask-size: contain;
         mask-position: center;
-        mask-image: url('$(res)/img/element-icons/call/voice-call.svg');
+        mask-image: url("$(res)/img/element-icons/call/voice-call.svg");
     }
 }