Remove volume button in call interface in Firefox

Add click event for `CallingVolumeButton` and `CallingScreenShareButton`
in call interface to open their respective menu.

Remove localVideoRef and remoteVideoRef from CallProvider

Change-Id: I87601153cb3e24b38a5f764b11935e32402caa31
diff --git a/client/src/components/Button.tsx b/client/src/components/Button.tsx
index a89726c..4e0d5ac 100644
--- a/client/src/components/Button.tsx
+++ b/client/src/components/Button.tsx
@@ -108,6 +108,7 @@
 
 export type ExpandableButtonProps = IconButtonProps & {
   isVertical?: boolean;
+  expandMenuOnClick?: boolean;
   Icon?: ComponentType<SvgIconProps>;
   expandMenuOptions?: (ExpandMenuOption | ExpandMenuRadioOption)[];
   IconButtonComp?: ComponentType<IconButtonProps>;
@@ -116,6 +117,7 @@
 export const ExpandableButton = ({
   isVertical,
   Icon,
+  expandMenuOnClick,
   expandMenuOptions = undefined,
   IconButtonComp = IconButton,
   ...props
@@ -194,7 +196,18 @@
             />
           </IconButton>
         )}
-        <IconButtonComp {...props}>{Icon && <Icon />}</IconButtonComp>
+        <IconButtonComp
+          onClick={
+            expandMenuOnClick
+              ? (event) => {
+                  setAnchorEl(event.currentTarget);
+                }
+              : undefined
+          }
+          {...props}
+        >
+          {Icon && <Icon />}
+        </IconButtonComp>
       </Box>
     </>
   );