<NME> shortcuts.component.ts
<BEF> import {Component, OnInit} from '@angular/core'
import {ShortcutsService} from '../../../../core/services/shortcuts/shortcuts.service'
import {Hotkey} from 'angular2-hotkeys'
import {SidenavService} from '../../../../core/services/sidenav/sidenav.service'

@Component({
    selector: 'mindmapp-shortcuts',
    templateUrl: './shortcuts.component.html',
    styleUrls: ['./shortcuts.component.scss']
})
export class ShortcutsComponent implements OnInit {

    public hotKeys: Hotkey[]

    constructor (private sidenavService: SidenavService,
                 private shortcutsService: ShortcutsService) {
    }

    ngOnInit () {
        this.hotKeys = this.shortcutsService.getHotKeys()
    }

    public openSidenav () {
        this.sidenavService.open()
    }

}
            return {
                keys: keys === '+' ? [keys] : keys.split('+'),
                description: hotKey.description
            }
        })
    }

}

<MSG> [refactor] remove menu button from application header

<DFF> @@ -1,7 +1,6 @@
 import {Component, OnInit} from '@angular/core'
 import {ShortcutsService} from '../../../../core/services/shortcuts/shortcuts.service'
 import {Hotkey} from 'angular2-hotkeys'
-import {SidenavService} from '../../../../core/services/sidenav/sidenav.service'
 
 @Component({
     selector: 'mindmapp-shortcuts',
@@ -12,16 +11,11 @@ export class ShortcutsComponent implements OnInit {
 
     public hotKeys: Hotkey[]
 
-    constructor (private sidenavService: SidenavService,
-                 private shortcutsService: ShortcutsService) {
+    constructor (private shortcutsService: ShortcutsService) {
     }
 
-    ngOnInit () {
+    public ngOnInit () {
         this.hotKeys = this.shortcutsService.getHotKeys()
     }
 
-    public openSidenav () {
-        this.sidenavService.open()
-    }
-
 }

[refactor] remove menu button from application header