feat: More general enhancements for views

[NeloBlivion]

Summary

Non-urgent additions and adjustments to views, probably 2.7.1 unless we still have all of january lol

• replace_item added to DesignerView, ActionRow, Section, Container, and MediaGallery
• Added remove_item to MediaGallery
• Added from_component to all modal components
• Reworked how _underlying works (i hate this)

will add whatever if i remember or if there's any reasonable requests

• add index, before and after to add_item

Information

• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed).
• This PR is not a code change (e.g. documentation, README, typehinting,
  examples, ...).

Checklist

• I have searched the open pull requests for duplicates.
• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• If type: ignore comments were used, a comment is also left explaining why.
• I have updated the changelog to include these changes.

[pycord-app]

Thanks for opening this pull request!
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This pull request can be checked-out with:

git fetch origin pull/3032/head:pr-3032
git checkout pr-3032

This pull request can be installed with:

pip install git+https://github.com/Pycord-Development/pycord@refs/pull/3032/head

[NeloBlivion]

from some testing by myself and luma this should fix the big issues in rc2, would appreciate if anyone could run a quick test on their own bot

[NeloBlivion]

redrafting since there's other plans for this

[Paillat-dev]

@NeloBlivion whar are we missing for this ?