[Feature]: Allow renaming/editing playlist names

[LbsLightX]

Checklist

• I have searched existing issues and this feature hasn't been requested yet

Problem / Motivation

Right now, once a playlist is created, you can't rename it. The only options are to play, download, or delete it. If you make a typo, you're stuck with it.

Proposed Solution

Add a simple "Rename" or "Edit Name" option either a little pencil icon next to the title or a button in the three dot menu so we can change the name without starting over.

Alternatives Considered

Deleting the whole playlist and rebuilding it from scratch, which is a massive pain.

Category

UI/UX Improvement

Additional Context

No response

[zarzet]

Added in 4.7.0