editor: Extract header and mouse out of element.rs

[GoldStrikeArch]

cc @SomeoneToIgnore

Summary

Follow-up to this comment. This extracts the buffer header and breadcrumb rendering helpers out of element.rs into a header.rs and mouse related things to mouse.rs

Self-Review Checklist:

• I've reviewed my own diff for quality, security, and reliability
• Unsafe blocks (if any) have justifying comments
• The content is consistent with the UI/UX checklist
• Tests cover the new/changed behavior
• Performance impact has been considered and is acceptable

Release Notes:

• N/A

[MrSubidubi]

I personally think it does not make much sense if any to not have this in a subfolder for the element rendering - this is completely different from the other stuff and does not take Editor as self but EditorElement - that is an entirely different struct. I'd find it confusing to jump through these and remember that, as this is an entirely different story IMO

[GoldStrikeArch]

@MrSubidubi

I'd find it confusing to jump through these and remember that, as this is an entirely different story IMO

Would you prefer to have this structure instead:

crates/editor/src/
├─ element/
│  ├─ mouse.rs
│  ├─ header.rs
├─ element.rs

wdyt?

[MrSubidubi]

I think that would be better, yes. Naming is up for debate, but personally feel this would make much more sense

[GoldStrikeArch]

@MrSubidubi

I think that would be better, yes. Naming is up for debate, but personally feel this would make much more sense

Alright, so I changed the file structure to that, please take a look

[SomeoneToIgnore]

Today is my last day, but chimed in and left a few notes.

[SomeoneToIgnore]

Thank you for the persistence.

Module system is straightened out now