Work done on the instance side of Amadeus

Changes:

• Attach mode for lektord
• The return of scrollbars
• Templatize everything and don't use custom template things in instance/main.js

Fixes:

• Some access on undefined variables
• Performance issues when listing lots of karas in queue and database search

instance/main.js

@@ -19,7 +19,6 @@ const buttonList = [
     [ 'right',  `<i class="fas fa-compass"></i>`,       'openKurisu',       'Kurisu in a new page'  ],
     [ 'right',  `<i class="fas fa-user-friends"></i>`,  'openUserView',     'Open client view'      ],
     [ 'right',  `<i class="fas fa-music"></i>`,         'openMdtView',      'Open metadata view'    ],
-    [ 'right',  `<i class="fas fa-sync-alt"></i>`,      'reloadQueue',      'Reload the queue'      ],
     [ 'right',  `<i class="fas fa-window-close"></i>`,  'closeButton',      'Quit Amadeus'          ],
 ];
 
@@ -85,7 +84,6 @@ window.onload = () => {
 
     addIpcToButton('openKurisu', ['toggle-kurisu']);
     addIpcToButton('openUserView', ['toggle-client-view']);
-    addIpcToButton('reloadQueue', ['reload-queue-request']);
 
     setTimeout(() => ipcRenderer.send('reload-queue-request'), 1000);
     setInterval(() => ipcRenderer.send('verify-queue-reloaded-request'), 50);