Stabilize editor UI page lifecycle tests #122

Job	Run time
Restore + Build Supporting Suites	1m 0s
Restore + Build Browser Suites	1m 2s
Run Supporting Suites	1m 41s
Run Browser Suite (Shell)	4m 37s
Run Browser Suite (Editor)	20m 47s
Run Browser Suite (Reader)	10m 29s
Run Browser Suite (Studio)	3m 21s
Publish Release Build	0s
Resolve Release Version	0s
Publish GitHub Release	0s
Deploy GitHub Pages	0s
	42m 57s

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