feat: improve error message on invalid site-key #496

Job	Run time
Test Unit	3m 55s
Test Unit	3m 55s
Test UI	10m 13s
Test UI	8m 53s
Test Benchmark	30m 14s
Test Benchmark	30m 3s
Sonar	2m 46s
Sonar	2m 46s
Build (target:34 compile:34 appcompat: 1.6.1)	4m 32s
Build (target:34 compile:34 appcompat: 1.6.1)	4m 32s
Build (target:33 compile:34 appcompat: 1.5.1)	4m 13s
Build (target:33 compile:34 appcompat: 1.5.1)	4m 13s
Diffuse report	5m 32s
Diffuse report	5m 32s
Build (target:32 compile:34 appcompat: 1.4.2)	4m 12s
Build (target:32 compile:34 appcompat: 1.4.2)	4m 12s
Build (target:30 compile:34 appcompat: 1.3.1)	3m 36s
Build (target:30 compile:34 appcompat: 1.3.1)	3m 36s
Build (target:30 compile:34 appcompat: 1.3.1)	3m 43s
Build (target:30 compile:34 appcompat: 1.3.1)	3m 43s
Test UI Minified	0s
Test UI Minified	0s
	2h 24m 21s

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