feat(ui): add back-to-app labels for editor and kanban

[saadnvd1]

Addresses this issue: #620

I was playing around with this and came up with something like this, but happy to update it.

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Note

Adds labeled back-to-app controls in the titlebar and refactors toggle logic.

• Introduces reusable TitlebarToggleButton to show a compact icon when closed and a labeled "Home" state with ArrowLeft when open
• Replaces Editor and Kanban buttons to use TitlebarToggleButton, updating tooltips and ARIA labels while preserving telemetry events
• Bumps app version to 0.3.53

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[arnestrickmann]

Nice, thanks for the PR, @saadnvd1!
I like the idea. Maybe change "App" to something like "Home" ?

[arnestrickmann]

or maybe instead of "Back to Home" just do "Home", wdyt?

[saadnvd1]

or maybe instead of "Back to Home" just do "Home", wdyt?

@arnestrickmann great idea, will update

[arnestrickmann]

nice!, then I'm very happy to test!

[arnestrickmann]

lmk if theres anything else you need @saadnvd1 🙏

[saadnvd1]

@arnestrickmann feel free to give it a test, thanks!

[arnestrickmann]

thank you! @saadnvd1