Loader bar: Implement loader for Content Workspaces

[nielslyngsoe]

Implements a new component called view-loader, which implements the UI-Library Loader in the center of the available space.

This components is then used of a few components to display a loader bar when loading heavy Entities in the various Content Workspaces(Document, Media, Member)

[Copilot]

Pull Request Overview

This PR implements a new umb-view-loader component that displays a centered loading animation for heavy entity loading in Content Workspaces. The loader provides visual feedback during data loading states across Document, Media, and Member workspaces.

Key changes:

• Created a new UmbViewLoaderElement component with centered loading animation
• Integrated loading state management across workspace components
• Added conditional rendering to show loader during heavy operations

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
view-loader.element.ts	New loader component with centered animation and fade-in effect
index.ts	Exports the new view-loader component
workspace.element.ts	Shows loader when workspace component is not ready
workspace-split-view.element.ts	Adds loading property to split view component
document-workspace-split-view.element.ts	Observes loading state and passes to child components
document-workspace-editor.element.ts	Shows loader during route generation and data loading
document-workspace.context.ts	Code formatting changes to observe method calls
content-editor.element.ts	Shows loader until content type and routes are loaded