ui: prune & gc: relay activate/deactivate events to sub panels

which allows us also to drop the initial manual load in the init,
which would also trigger if the tab isn't visible.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

www/config/PruneView.js

@@ -41,7 +41,6 @@ Ext.define('PBS.config.PruneJobView', {
 	    }
 	    view.getStore().rstore.getProxy().setExtraParams(params);
 	    Proxmox.Utils.monStoreErrors(view, view.getStore().rstore);
-	    this.reload();
 	},
 
 	addPruneJob: function() {