[UI/UX] Improved DOM visibility handling

Signed-off-by: Akash Ravi <akashkravi@gmail.com>

Author: techtocore

extension/js/scripts.js

@@ -10,7 +10,6 @@ This function populates the sidebar each time it is opened.
 function package_view(dir) {
 
     $('#loadingview').show();
-    $('#packageview').hide();
     $('#installed-packages').empty();
     $('#to-install').empty();
 

extension/js/templates/sidebar.css

@@ -23,6 +23,7 @@
 #packageview {
   padding-left: 10px;
   width: 410px;
+  display:none;
 }
 
 .value-name {