Add "Accept All Edits" command accessible from editor context with Ctrl+Alt+Y

[Copilot]

Adds a new command to accept all chat edits directly from the editor context, improving accessibility for screen reader users who want to review files in the editor and accept all edits without navigating back to the chat panel.

Changes Made

New AcceptAllEditsAction Class

• Extends ChatEditingEditorAction to work from editor context
• Calls session.accept() without parameters to accept all edits (same logic as chat panel)
• Configured with Ctrl+Alt+Y keybinding as requested
• Available in F1 command palette as "Keep All Chat Edits"
• Proper preconditions: only enabled when there are chat modifications and no request in progress

Updated Accessibility Help

• Added keybinding reference for the new "Accept all edits" command in standaloneStrings.ts
• Screen readers will now announce this option when viewing accessibility help for editors with chat edits

Usage

When a user has pending chat edits in an editor:

1. Press Ctrl+Alt+Y to accept all edits in the session
2. Or use F1 → "Keep All Chat Edits" command
3. Works in both regular editors and notebook contexts
4. Fully accessible via keyboard and screen readers

Technical Details

• Follows existing VS Code patterns by extending ChatEditingEditorAction
• Uses same preconditions as other chat editing actions (ctxHasEditorModification, ctxHasRequestInProgress.negate())
• High keybinding weight to avoid conflicts
• Only 27 lines of changes across 2 files

Fixes #251440.

Warning

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• electronjs.org
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If you need me to access, download, or install something from one of these locations, you can either:

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[meganrogge]

Tested and it works. Use case is a screen reader user's in the editor reviewing changes and wants to accept all without navigating back to the panel.