refactor(context): allow edit message from modal interaction

[Damego]

About

There is known bug (or we just don't support this feature) when you can't edit message from the modal interaction.
This pr fixes this bug by:

• Moving ComponentContext.defer to _Context.defer and removing CommandContext.defer. They are same but ComponentContext have edit_origin param. So now we can defer with edit_origin for modal.
• Refactored CommandContext.edit to make work with modals. Code partially copied from ComponentContext.edit.

Additionally:

• raises exceptions in some places.
• Use with suppress(LibraryException) instead of this cursed code:

try:
    ...
except LibraryException:
    pass
else:
    ...

• Optimized conditions in return statements:

# instead of
return msg if msg is not None else Message(...)
# use
return msg or Message(...)

Checklist

• The pre-commit code linter has been run over all edited files to ensure the code is linted.
• I've ensured the change(s) work on 3.8.6 and higher.
• I have added the versionadded, versionchanged and deprecated to any new or changed user-facing function I committed.

Pull-Request specification

I've made this pull request: (check all that apply)

• For the documentation
• To add a new feature
• As a general enhancement
• As a refactor of the library/the library's code
• To fix an existing bug
• To resolve #ISSUENUMBER

This is:

• A breaking change