add hidden apps compatible with default menu (fix #219)

src/SideMenu.vue

@@ -41,6 +41,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
     <ul class="side-menu-apps-list">
       <SideMenuApp
         v-for="(app, key) in apps"
+        v-if="!hiddenApps.includes(app.id)"
         v-bind:classes="{'side-menu-app': true, 'active': app.active}"
         v-bind:key="key"
         v-bind:icon="app.icon"
@@ -76,6 +77,7 @@ export default {
       avatar: null,
       forceLightIcon: false,
       targetBlankApps: [],
+      hiddenApps: [],
       settings: null,
     }
   },
@@ -127,6 +129,7 @@ export default {
           this.logo = config['logo']
           this.logoLink = config['logo-link']
           this.settings = config['settings']
+          this.hiddenApps = config['big-menu-hidden-apps']
         })
     },
   },