fix: allow removing files and embeds by editing

[ItsRqtl]

Pull Request Type

• [ ] Feature addition
• [x] Bugfix
• [ ] Documentation update
• [ ] Code refactor
• [ ] Tests improvement
• [ ] CI/CD pipeline enhancement
• [ ] Other: [Replace with a description]

Description

Allow users to remove files or embeds from messages by passing an empty list into files/embeds fields in edit method of Message/InteractionContext or edit_origin method of ComponentContext.

Changes

Related Issues

Not on GitHub but the related Discord thread: https://discord.com/channels/789032594456576001/1245924804314267760

Test Scenarios

Python Compatibility

• [x] I've ensured my code works on Python 3.10.x
• [ ] I've ensured my code works on Python 3.11.x

Checklist

• [x] I've run the pre-commit code linter over all edited files
• [x] I've tested my changes on supported Python versions
• [ ] I've added tests for my code, if applicable
• [ ] I've updated / added documentation, where applicable