UI: Align Albums detail page header with AI Tagging collection layout

[coderabbitai]

Summary

Update the Albums detail-page layout so that it is consistent with the AI Tagging face-collection detail page.

This request was made by @rohan-pandeyy in the discussion for PR #610. This issue is intentionally unassigned.

Required changes

• Replace the current Albums detail-page back control with the outlined Back to Albums button style used by the AI Tagging face-collection detail page.
• Position the back button at the top left of the page content.
• Position the album name and description below the back button.
• Align Select Images and Add Images to the top-right area, on the same row as the back button.
• Move the image count to the right-side action area. The exact position can follow the implementation's responsive layout requirements.
• Keep the layout usable on mobile and desktop screens.

Affected area

• Albums detail page UI, likely frontend/src/pages/Album/AlbumDetail.tsx and its related styles/components.

Acceptance criteria

• The Albums detail page uses the same visual back-button pattern as the AI Tagging face-collection detail page.
• The header structure matches the annotated reference: back button first, album title and description below it, actions aligned on the right.
• The image count is no longer shown as a separate left-side line above the gallery.
• Existing album actions continue to work.
• The layout remains responsive.

References

• Pull request: feat: implement albums feature with create, edit, delete, and image management UI #610
• Requester: @rohan-pandeyy

Current Albums detail page

Existing AI Tagging reference

Annotated target layout

[github-actions]

👋 Thanks for opening this issue! The maintainers will review it shortly. Till then, do not open any PR. This is a strict rule we like to follow around here :)

[VanshajPoonia]

@rohan-pandeyy Can I please work on this issue?

[akshajtiwari]

I am interested as well, already finished my backlogs, ( will open the PR for the previous one today)
Currently nothing else is assigned