Use display-warning to print indent warnings

[blahgeek]

See comments in #191

[fgiasson]

What was the reason to remove copilot-indent-warning-suppress?

In my current setup, I am getting warning messages every time that I type something while being in copilot-mode. Is there a new way to suppress them? (can't see from this PR)

[fgiasson]

For the ones experiencing this issue, you can always install up to the previous commit until this is resolved (in Spacemacs):

(copilot :location (recipe
                               :fetcher github
                               :repo "zerolfx/copilot.el"
                               :commit "ba1d6018fdc2d735fecab1b2dcd4b5ea121b05ac"
                               :files ("*.el" "dist")))

[Ramblurr]

This new warning that is displayed upon every keypress is rather frustrating.

1. It is displayed on every keypress
2. It does not contain (nor the docs here on github) any actionable instructions

This renders copilot.el effectively useless and the warning is basically a fatal error because I can't use emacs with it enabled.

If its just a warning (i.e., a non fatal error that can be ignored) it shouldn't display on every keystroke. It should display once and then get out of my way.

If it is an error, then make it clear that something is wrong and copilot.el cannot be used in the current state.

Ideally in either case there would be some actionable advice or documentation about how to resolve the warning/error.

[blahgeek]

@Ramblurr sorry for the inconvenience. Printing the warning on each keystroke is not expected, I will fix it ASAP (update: fixed: #215).

To suppress the warning, execute (add-to-list 'warning-suppress-types '(copilot copilot-no-mode-indent)) (or to suppress all warnings from copilot, (add-to-list 'warning-suppress-types 'copilot)). Pressing "enter" on the *Warnings* buffer should prompt you to do so.

[Ramblurr]

Thanks @blahgeek I appreciate the response.

Aside from suppressing the warning is there a proper way to fix the problem (which I don't fully understand tbh)?

[blahgeek]

Well, according to the code, it warns because current major mode's indentation cannot be found in neither copilot--indentation-alist or editorconfig-indentation-alist. Adding corresponding entries to them should be able to fix it.

More details in #179