feat: show empty trash bin icon at quick action if trash is empty

[AlexAndBear]

Description

Related Issue

• Fixes Change trash bin icon in overview #1637

How Has This Been Tested?

• test environment:
• test case 1:
• test case 2:
• ...

Types of changes

• Bugfix
• Enhancement (a change that doesn't break existing code or deployments)
• Breaking change (a modification that affects current functionality)
• Technical debt (addressing code that needs refactoring or improvements)
• Tests (adding or improving tests)
• Documentation (updates or additions to documentation)
• Maintenance (like dependency updates or tooling adjustments)

[Copilot]

Pull Request Overview

This PR implements dynamic icon selection for the empty trash bin action, showing an empty trash bin icon when the trash is empty and a filled trash bin icon when it contains items. The implementation extends the Action interface to support icons as functions that can dynamically determine the appropriate icon based on context.

Key Changes:

• Extended the Action interface to allow icon to be either a string or a function that returns a string
• Implemented dynamic icon selection in the empty trash bin action based on the hasTrashedItems property
• Updated all components that render action icons to handle both static and function-based icons

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
packages/web-pkg/src/composables/actions/types.ts	Extended Action interface to support function-based icons
packages/web-pkg/src/composables/actions/files/useFileActionsEmptyTrashBin.ts	Implemented dynamic icon selection for empty trash bin action
packages/web-pkg/src/components/ContextActions/ActionMenuItem.vue	Added computed property to resolve action icons
packages/web-app-files/src/views/spaces/GenericTrash.vue	Added icon resolution for trash bin action button
packages/web-app-files/src/components/Trash/TrashQuickActions.vue	Added helper function to resolve action icons
packages/web-app-files/src/components/FilesList/QuickActions.vue	Added helper function to resolve action icons
packages/web-app-files/src/components/AppBar/CreateAndUpload.vue	Added helper function to resolve action icons
packages/web-app-admin-settings/src/views/Users.vue	Added computed property to resolve create user action icon
packages/web-app-admin-settings/src/views/Groups.vue	Added computed property to resolve create group action icon

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[kulmann]

Nice, works like a charm and really achieves better visual guidance. 💪