Add missing friendly names for container-tools and github-pull-request tools (#512)

* Initial plan

* Add missing friendly names for container-tools and github-pull-request tools

Agent-Logs-Url: https://github.com/rajbos/github-copilot-token-usage/sessions/3607e2ea-98ff-4be0-890f-1668cc356d8d

Co-authored-by: rajbos <6085745+rajbos@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rajbos <6085745+rajbos@users.noreply.github.com>

Author: Copilot

vscode-extension/src/toolNames.json

@@ -327,4 +327,8 @@
   ,"screenshot_page": "Screenshot Page"
   ,"task_complete": "Task Complete"
   ,"pdf-utilities.pdf": "PDF Utilities: PDF"
-}
+  ,"container-tools_get-config": "Container Tools: Get Config"
+  ,"github-pull-request_activePullRequest": "GitHub Pull Request: Active Pull Request"
+  ,"github-pull-request_issue_fetch": "GitHub Pull Request: Issue Fetch"
+  ,"github-pull-request_pullRequestStatusChecks": "GitHub Pull Request: Pull Request Status Checks"
+}