fix #11 #14

Author: lxieyang

src/pages/Sidebar/containers/TabsList/Tab/Tab.css

@@ -69,7 +69,7 @@
 .PinnedIcon {
   width: 8px;
   height: 8px;
-  opacity: 0.7;
+  opacity: 0.5;
   color: rgb(66, 66, 66);
   transform: rotate(-45deg);
 }

src/pages/Sidebar/containers/TabsList/Tab/Tab.jsx

@@ -272,9 +272,10 @@ const Tab = ({
             <MenuItem onClick={(e) => deplicateTabClickedHandler(e, id)}>
               Duplicate
             </MenuItem>
-            {/* <MenuItem onClick={(e) => pinTabClickedHandler(e, id)}>
+            <MenuItem onClick={(e) => pinTabClickedHandler(e, id)}>
               {pinned ? 'Unpin' : 'Pin'} Tab
             </MenuItem>
+            {/* 
             <MenuItem onClick={(e) => muteTabClickedHandler(e, id)}>
               {muted ? 'Unmute' : 'Mute'} Tab
             </MenuItem> */}