Zen mode's resizing hook is showing over tabs

[Ky6uk]

Issue Type: Bug

VS Code version: Code 1.24.0 (6a6e02c, 2018-06-06T17:30:30.113Z)
OS version: Darwin x64 17.6.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz (4 x 1300)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled rasterization: enabled video_decode: enabled video_encode: enabled vpx_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	2, 3, 5
Memory (System)	8.00GB (0.08GB free)
Process Argv	/Applications/Visual Studio Code.app/Contents/MacOS/Electron
Screen Reader	no
VM	0%

Extensions (13)

Extension	Author (truncated)	Version
EditorConfig	Edi	0.12.4
Bookmarks	ale	0.19.1
project-manager	ale	0.25.2
vscode-color	ans	0.4.5
snapshot-tools	asv	0.0.7
vscode-eslint	dba	1.4.12
tslint	eg2	1.0.30
beautify	Hoo	1.3.2
vscode-styled-components	jpo	0.0.18
atom-keybindings	ms-	3.0.4
vscode-icons	rob	7.23.0
code-settings-sync	Sha	2.9.2
language-stylus	sys	1.9.2

(1 theme extensions excluded)

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Zen mode restore setting restores only full-screen (#44652)
• Zen mode remove top bar (#30567)
• Feature request in Zen Mode! (#48256)

[isidorn]

Will be handled as part of #50936