Fix Update Button Visibility and Position in Agents Window

[Dmitriy Vasyura (dmitrivMS)]

This pull request addresses the visibility and positioning of the Update button in the Agents window. The changes made include: - Visibility Fix: The Update button is now always visible in the Agents window, regardless of active sessions or the Commit action eligibility. - Position Adjustment: The Update button has been moved to the left side of the title bar, following the existing layout actions, to reduce crowding on the right side. - Tooltip Alignment: The tooltip for the Update button is now aligned correctly based on its placement—left-aligned in the Agents window and right-aligned in the editor title bar. ### Changes Summary: - Updated visibility logic in account.contribution.ts. - Moved Update button to the left title bar in titlebarPart.ts. - Adjusted tooltip alignment in updateTitleBarEntry.ts. - Removed unused right-side toolbar and related CSS. ### Validation: - Typecheck and all relevant tests have passed successfully.

Screenshot

[vs-code-engineering]

📬 CODENOTIFY

The following users are being notified based on files changed in this PR:

Benjamin Christopher Simmonds (@benibenj)

Matched files:

• src/vs/sessions/browser/parts/media/titlebarpart.css
• src/vs/sessions/browser/parts/titlebarPart.ts

[Copilot]

Copilot review overview

Review tier: Balanced
Findings: 1 · 1

New issues introduced by this change (2)

Severity	Finding
	src/​vs/​sessions/​contrib/​accountMenu/​browser/​account.contribution.ts — Moving the entry into TitleBarLeftLayout drops the overflow recalculation that the removed…
	src/​vs/​sessions/​contrib/​accountMenu/​browser/​account.contribution.ts — The regression condition removed here is not covered by the updated tests.…

What changed in this PR

Moves the Agents Window Update action to the left title bar while preserving editor placement behavior.

Changes:

• Removes session/commit eligibility visibility constraints.
• Uses placement-specific tooltip alignment.
• Removes the obsolete right-side toolbar and styling.

File	Description
updateTitleBarEntry.test.ts	Tests left-aligned focused tooltip behavior.
updateTitleBarEntry.ts	Supports placement-specific tooltip alignment.
account.contribution.ts	Registers Update in the Agents left toolbar.
titlebarPart.ts	Removes the dedicated right-side Update toolbar.
titlebarpart.css	Removes obsolete Update toolbar spacing.
menus.ts	Removes the obsolete Update menu identifier.

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