Better installation support

[climba03003]

This is most of the issue in the original repo and too much for referencing one by one.

Problem:

• windows cannot install hooks
• pnpm
• symbolic link

Reference
observing/pre-commit#4
observing/pre-commit#27
...
observing/pre-commit#121
observing/pre-commit#123
observing/pre-commit#144
observing/pre-commit#150
observing/pre-commit#152

Possible fixes
observing/pre-commit#151

[jsumners]

I think we have covered the majority of this. If anyone needs anything we have missed, please open a new issue on this repository.