Fixed placeholder label layout - it should calculate bounds considering label width, not bounds width

[akievsk]

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PR Summary

Fixed placeholder label layout - it should calculate bounds considering label width, not bounds width

[dzenbot]

@akievsk did you find any ways to reproduce the issue on the sample project? I haven't experienced any issues with the label. Even tho your changes seem logical, I would first want to verify the fix.

[akievsk]

Here is the sample how this bug can be reproduced. I changed placeholder to something "very long" and changed height of text view to be more than one line

[dzenbot]

Great. This is useful, thanks. Will review this soon.