[ui] Add list view in gallery

[Alxiice]

What does this PR do ?

It adds a list view to the image gallery :

Changes in the code

• main changes :
  • the whole layout for the image gallery has been moved to specific files : ImageGridView and ImageListView. They are dynamically loaded through QML components with a loader depending on the layout mode
  • the delegate has been modified to be able to display different layouts (list layout mode is built as a row layout and grid mode is a column layout)
• small improvements
  • search bar : when we press tag make sure it shows the search bar
  • when we press escape make sure it hides the search bar

Notes for the review

• The one thing I didn't do is that I wanted write the code inside the view files (imagegridview/imagelistview) once and reuse the same component (because it's basically the same code but I had issues some with QML so for now the code is duplicated. If that's a big issue I can try to find a way around
• Also I wanted to include the multi-image selection in this PR but it was a bit tricky so I will add this later

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.09%. Comparing base (377305b) to head (6a3fc60).
⚠️ Report is 6 commits behind head on develop.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2975   +/-   ##
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  Coverage    81.09%   81.09%           
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  Files           66       66           
  Lines         8858     8858           
========================================
  Hits          7183     7183           
  Misses        1675     1675           

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[Copilot]

Pull request overview

This PR adds a list view option to the image gallery, allowing users to switch between grid (thumbnail) and list layout modes for viewing images. The implementation refactors the gallery layout into separate, dynamically-loaded view components (ImageGridView and ImageListView) while updating the ImageDelegate to support both display modes.

Changes:

• Refactored image gallery layouts into separate ImageGridView and ImageListView components with dynamic loading via QML Loader
• Modified ImageDelegate to support both grid and list layout modes using conditional component loading
• Enhanced SearchBar with Escape key handling to hide the search bar and improved visibility toggling

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
meshroom/ui/qml/ImageGallery/qmldir	Registers the new ImageGridView and ImageListView components
meshroom/ui/qml/ImageGallery/ImageGridView.qml	New grid view component extracted from main ImageGallery
meshroom/ui/qml/ImageGallery/ImageListView.qml	New list view component with vertical layout for images
meshroom/ui/qml/ImageGallery/ImageGallery.qml	Refactored to use dynamic loader for switching between views, added layout mode toggle
meshroom/ui/qml/ImageGallery/ImageDelegate.qml	Updated to support both grid and list layouts with conditional rendering
meshroom/ui/qml/Controls/SearchBar.qml	Added Escape key handler and improved visibility toggling
meshroom/ui/qml/WorkspaceView.qml	Removed invalid QML syntax line
meshroom/core/init.py	Split logging statement into two separate calls for better formatting

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[Copilot]

The magic number 50 for the timer interval lacks context. Consider adding a comment explaining why this delay is necessary, or define it as a named constant like layoutInitializationDelay for better maintainability.

Suggested change

	Timer {
	id: scrollTimer
	interval: 50 // Small delay to ensure layout is complete
	// Delay (in ms) used to ensure the layout is fully initialized before updating
	// the current index and attempting to scroll to the selected item.
	readonly property int layoutInitializationDelay: 50
	Timer {
	id: scrollTimer
	interval: layoutInitializationDelay