[Auto] [Update] Document Layer property type for behaviors and scene parameter for object preloading actions

[github-actions]

This PR was automatically generated by the Update docs from GDevelop commits workflow.

An AI coding agent analysed recent commits in 4ian/GDevelop
and updated the documentation to reflect user-facing changes.

GDevelop commits covered

d9d8a7d3e Fix a regression on the displayed position of custom objects (#8604)
c8d5f4600 Add a button in the extension editor to select behaviors with the dialog (#8602)
f9d1d4c60 Fix and show the button to add parameters to "action with operator" functions as disabled (#8603)
d81a6899d Allow to create variables from autocompletion in more cases (#8583)
cacd28eed Add a "layer" property type for custom behaviors (#8596)
e2de84627 Allow to load and unload objects from other scenes (#8592)
584cca2d4 Export classes in ResourceLoader for better TypeScript compatibility (#8594)
0b3f8e720 Improve types for TypeScript 6 (#8591)
4bb652f5e Fix Ai Panel not aligned to the top properly on mobile + improve games search to be more relevant (#8590)
f60562eae [Auto PR] Update translations (#8585)
1c17c895b Allow custom objects to move layer cameras (#8572)
651c93ae1 Add "Select All" in Events Sheet and ability to deselect an event when doing a multi-selection (#8578)
0eb6014a9 Fix some visual glitches in the Events Sheet when opening and scrolling (#8571)

The AI agent summary is:

Summary of documentation changes:

• docs/gdevelop5/behaviors/events-based-behaviors/index.md: Added "Layer (text)" to the list of supported property types for events-based behaviors (new property type introduced in commit cacd28eed).
• docs/gdevelop5/all-features/resources-loading/index.md: Noted that the Preload object / Unload object actions now take a scene name parameter, so users can preload object assets from any scene (commit e2de84627).

Skipped: bug fixes, internal TypeScript improvements, the "Select All / deselect in multi-selection" change (standard editing shortcut per CLAUDE.md guidance), and the custom-object camera fix (not covered in existing docs).

Please review the changes carefully before merging.

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Project	Deployment	Actions	Updated (UTC)
gdevelop-wiki	Ready	Preview, Comment	May 17, 2026 8:55am