improve default test results focus behavior

[connectdotz]

This is to change the default test results panel focusing behavior for auto-run modes (watch, on-save) when no "testing.openTesting" and "jest.outputConfig" is defined. While there is an easy workaround, it has nevertheless interrupted users' workflow. This fix should eliminate the root cause; thus, no workaround will be needed anymore.

This PR introduce different default behavior by run-mode:

• For watch and on-save, when nothing is defined (the default), test results panel will not auto switch focus.
• For on-demand, when nothing is defined (the default), test results panel will auto switch focus. => same as v6.2.2

Also removed the auto-run mode warning since it is no longer needed.

This is to improve the following issues further:

• 1111

• 1113

• 1117

• 1122

[coveralls]

Pull Request Test Coverage Report for Build 8301826188

Details

• 43 of 43 (100.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.007%) to 98.005%

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Totals
Change from base Build 8268417093:	0.007%
Covered Lines:	3928
Relevant Lines:	3935

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💛 - Coveralls