[Exeloo]

What does this PR do?

Simplify interfaces by reducing the amont of text, of sub buttons, and add button before more details.

How do you test this PR?

[Tchips46]

Review: simplify interfaces (02aac04)

Line numbers are at this PR's head.

Must fix

1. The migration switches new users to "full" on their second load (packages/ui/src/workbench/setup/setup-workbench.ts:121-134)

• When the layout came from a save, no scope holds layout.preset, and savedNames.length > 0, it writes 'full'.
• Nothing ever writes simple for a new user. Their first layout change is saved after 500 ms (_set → _persist), so on the next load firstRun is false, a saved name exists, and the migration takes them for an existing user. From then on every new project and every Reset layout shows all panels, against layout.mdx:43.
• Not caught because the migration has no test, and e2e resetLayout always writes 'full'.
• Fix: whenever no scope holds a preset, write one: 'full' if !layout.firstRun && savedNames.length, otherwise 'simple'.

Should fix

2. The INTERNAL and TIMEOUT hints replace git's own messages with wrong ones (packages/ui/src/workbench/notification/describe-error.ts:23-28, reached from plugins/git/src/index.ts:44)

• Every failed git command throws RpcError('INTERNAL', <git stderr>) (server-core/src/git/git-service.ts:445). A rejected push now says "Something went wrong in the editor server", with git's reason hidden behind Show details.
• A stuck push throws RpcError('TIMEOUT', "git push got no answer from the remote… run it once in a terminal") (git-service.ts:434). The toast now says "The editor server took too long to answer", which is false, and the fix is hidden.
• Fix: give the INTERNAL hint only when the message is the router's generic 'Internal error' (packages/rpc/src/router/router-entries.ts:26), and drop TIMEOUT from HINTS (the client's own timeout message is already plain).

3. usePreset writes the account scope, which a machine value outranks (setup-workbench.ts:107-118)

• Example: Default layout set to "All panels" under This machine, then View › Layouts › Simple layout. The reset is simple, but the next Reset layout is full again.
• Fix: write to settings.inspect(CoreSettings.layoutPreset).effectiveScope when it is account or machine.

4. The widget description field is missing from the plugin docs (docs/docs/plugins/manifest.mdx:84-96)

• The table gained essential but not description, which four manifests already use. Add one row.

Nice to have

• Tab tooltips (packages/ui/src/workbench/parts/TopBar.svelte:74, 92): a screen with no description gets a tooltip that repeats its own label, and the visually hidden description span inside the tablist is read twice in browse mode. Wrap in Tooltip only when there is a description, and give the span hidden (aria-describedby still reads it).
• Lean: errorCodeOf (describe-error.ts:32) repeats apps/editor/src/lib/editor/error-description.ts:17 (errorCode), packages/settings/src/account-sync/account-sync-store.ts:27 and the codeOf helpers in the packages and settings-ui plugins. Keep one.
• Docs (docs/docs/getting-started/create-your-first-project.mdx:41-43): the new paragraph splits the bullet list, and editor-overview.png still shows the full layout.