fix: stdin should be echoed to stderr by convention

[sweatybridge]

What kind of change does this PR introduce?

Bug fix

What is the new behavior?

Also prints error only in debug mode.

Additional context

https://unix.stackexchange.com/questions/380012/why-does-bash-interactive-shell-by-default-write-its-prompt-and-echoes-its-inter

[coveralls]

Pull Request Test Coverage Report for Build 8831983053

Details

• 9 of 19 (47.37%) changed or added relevant lines in 4 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.02%) to 58.216%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/bootstrap.go	0	1	0.0%
internal/utils/console.go	9	10	90.0%
cmd/branches.go	0	4	0.0%
internal/projects/create/create.go	0	4	0.0%

Files with Coverage Reduction	New Missed Lines	%
cmd/bootstrap.go	1	10.91%

Totals
Change from base Build 8828648310:	0.02%
Covered Lines:	6508
Relevant Lines:	11179

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💛 - Coveralls