[key bindings] Several "WARN: Collided keybinding is ignored"

[MarkZ3]

Theia master as of (603fe22), Electron example.

[2018-06-27T13:47:08.892Z] WARN: Theia/28010 on elxajvlvvz1: (logger=root)
Collided keybinding is ignored; [ '{"command":"monaco.editor.action.wordHighlight.next","keybinding":"f7","context":"editorTextFocus"}',
' collided with ',
'{"command":"monaco.editor.action.diffReview.next","keybinding":"f7","context":"editorTextFocus"}' ]

[2018-06-27T13:47:08.894Z] WARN: Theia/28010 on elxajvlvvz1: (logger=root)
Could not register keybinding:
{"command":"monaco.editor.action.wordHighlight.next","keybinding":"f7","context":"editorTextFocus"}
Error: "f7" is in collision with something else [scope:0] []

[2018-06-27T13:47:08.894Z] WARN: Theia/28010 on elxajvlvvz1: (logger=root)
Collided keybinding is ignored; [ '{"command":"monaco.editor.action.wordHighlight.prev","keybinding":"shift+f7","context":"editorTextFocus"}',
' collided with ',
'{"command":"monaco.editor.action.diffReview.prev","keybinding":"shift+f7","context":"editorTextFocus"}' ]

[2018-06-27T13:47:08.896Z] WARN: Theia/28010 on elxajvlvvz1: (logger=root)
Could not register keybinding:
{"command":"monaco.editor.action.wordHighlight.prev","keybinding":"shift+f7","context":"editorTextFocus"}
Error: "shift+f7" is in collision with something else [scope:0] []

[paul-marechal]

Duplicate: #1888