Strip leading/trailing whitespace for links and inline code

[kevinoid]

It would be great if the fix from #177 for #142, which strips leading and trailing whitespace for emphasis/strong/underline/strikethrough, could also be applied to links and inline code where leading and trailing space is stripped for white-space: normal.

html2text.html2text('<a href="https://example.com">\nExample\n</a>')
'[ Example ](https://example.com)\n\n'
>>> html2text.html2text('<code>\nx = 1\n</code>')
'` x = 1 `\n\n'

• Version by html2text --version: 2020.1.16 (a3ed67b)
• Test script: See above.
• Python version python --version: 3.9.10

Related: #371

Thanks, Kevin

[kevinoid]

Potential duplicate (at least for inline links, if not code): #329