[WIP] Add a comment and resolve button feature

[Copilot]

Plan for "Comment and Resolve" Feature

• Explore codebase to understand current implementation
• Add new command pr.createCommentAndResolve to package.json
• Add new command pr.createSingleCommentAndResolve to package.json
• Add localized strings for new commands to package.nls.json
• Register menu items for new commands in package.json (comments/commentThread/context)
• Implement command handlers in src/commands.ts
• Hide commands from command palette
• Compile and verify no errors
• Build and test the implementation manually
• Verify with screenshots

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add a "comment and resolve" button</issue_title>
<issue_description>
Issue Type: Feature Request

I very often add a comment and then resolve, which needs quite a few clicks. It would be nice to have a "Comment and resolve" button, akin to the "Close with Comment" button on the Github UI.

Extension version: 0.42.0
VS Code version: Code 1.67.2 (c3511e6c69bb39013c4a4b7b9566ec1ca73fc4d5, 2022-05-17T18:15:52.058Z)
OS version: Windows_NT x64 10.0.22621
Restricted Mode: No
Remote OS version: Linux x64 5.10.102.1-microsoft-standard-WSL2
Remote OS version: Linux x64 5.10.102.1-microsoft-standard-WSL2

Comments on the Issue (you are @copilot in this section)

• Fixes Add a "comment and resolve" button #3568

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