Add friendly name for mcp_gitkraken_git_log_or_diff tool (#553)

* Initial plan

* feat: add friendly name for mcp_gitkraken_git_log_or_diff tool

- Added missing tool name entry to toolNames.json
- Tool now displays as 'GitKraken MCP: Git Log or Diff' in the UI
- Entry added alphabetically with other GitKraken MCP tools

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

---------

Co-authored-by: anthropic-code-agent[bot] <242468646+Claude@users.noreply.github.com>
Co-authored-by: rajbos <6085745+rajbos@users.noreply.github.com>

Author: Claude

vscode-extension/src/toolNames.json

@@ -45,6 +45,7 @@
   ,"mcp_gitkraken_git_status": "GitKraken MCP: Git Status"
   ,"mcp_gitkraken_git_branch": "GitKraken MCP: Git Branch"
   ,"mcp_gitkraken_git_checkout": "GitKraken MCP: Git Checkout"
+  ,"mcp_gitkraken_git_log_or_diff": "GitKraken MCP: Git Log or Diff"
   ,"mcp_gitkraken_gitkraken_workspace_list": "GitKraken MCP: List Workspaces"
   ,"mcp_pencil_batch_design": "Pencil MCP: Batch Design"
   ,"mcp_pencil_get_editor_state": "Pencil MCP: Get Editor State"