Fixes #255 Disable file extension check entirely

[aweis89]

Currently there's a filter where --watch-file doesn't work for file's that don't match the list of static extensions.
The issue is:

• I'd assume users would prefer to be able to use this feature with files that have different comment styles (using a currently supported format) even if it's not a technically valid comment rather than not be able to use this feature at all
• Files like .zshrc which don't conform to the extension check would need to have separate logic for checking the filename
• Having to list all extensions and exceptions seems like overly burdensome

Fixes #2550

[CLAassistant]

All committers have signed the CLA.

[paul-gauthier]

This is something I have been considering. Let me think on it. I worry that it may have unintended consequences.

[aweis89]

This is something I have been considering. Let me think on it. I worry that it may have unintended consequences.

I was wondering about this as well. However, based on the assumption that aider would only consider newly added comments, I figured that would further limit the potential unintended consequences. Would a user indeed have to add an AI comment to a file after triggering aider for it to be considered? I was also wondering if maybe a '--watch-ignore' should be added to exclude various path?

[umutcanoner]

I believe this might be better. I, for one, utilize aider not only as a coding tool. I use it a lot while working on large markdown documents, frontend files; even files without file extensions.
edit: I remember utilizing aider while working on my travel visa even.