Monitor shared repos (#5375)

* [shared with me] added 'watch/unwatch file changes' for libraries

* [groups, group] added 'watch/unwatch file changes' for libraries

* [shared with me] only libraries shared with 'r', 'rw' permissions can be monitored

* [groups, group] only libraries shared with 'r', 'rw' permissions can be monitored

* [shared with me] improved the interaction for library items

* [groups, group] cleaned up the code

frontend/src/components/shared-repo-list-view/shared-repo-list-view.js

@@ -99,6 +99,7 @@ class SharedRepoListView extends React.Component {
               onItemDelete={this.props.onItemDelete}
               onItemDetails={this.props.onItemDetails}
               onItemRename={this.props.onItemRename}
+              onMonitorRepo={this.props.onMonitorRepo}
             />
           );
         })}