Add Copying and Exporting Support to Edit Data

[lewis-sanchez]

Pull Request Template – vscode-mssql

Description

This PR adds support for the following copy and export operations:

• Copy - Copies the selected grid data
• Copy with Headers - Copies selected grid data with column headers
• Copy Headers - Doesn't copy grid data, but only the column headers of selected columns.
• Export to CSV
• Export to Excel
• Export to JSON

Here's a demo of copying with these 3 copy options:

This PR also adds support for exporting to CSV, Excel, and JSON.
Here's a demo of exporting to CSV

Here's a demo of exporting to Excel

Here's a demo of exporting to JSON

Provide a clear, concise summary of the changes in this PR. What problem does it solve? Why is it needed? Link any related issues using issue closing keywords.

Code Changes Checklist

• New or updated unit tests added
• All existing tests pass (npm run test)
• Code follows contributing guidelines
• Telemetry/logging updated if relevant
• No regressions or UX breakage

Reviewers: Please read our reviewer guidelines

[github-actions]

PR Changes

Category	Target Branch	PR Branch	Difference
vscode-mssql VSIX	5285 KB	5300 KB	⚪ 15 KB ( 0% )
sql-database-projects VSIX	5668 KB	5668 KB	⚪ 0 KB ( 0% )

[codecov-commenter]

Codecov Report

❌ Patch coverage is 98.38710% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 66.00%. Comparing base (eb6daf1) to head (d422e8a).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
...rc/tableExplorer/tableExplorerWebViewController.ts	98.27%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #20812      +/-   ##
==========================================
+ Coverage   65.90%   66.00%   +0.09%     
==========================================
  Files         210      210              
  Lines       19989    20051      +62     
  Branches     2596     2600       +4     
==========================================
+ Hits        13174    13234      +60     
- Misses       6718     6719       +1     
- Partials       97       98       +1     

Files with missing lines	Coverage Δ
extensions/mssql/src/constants/locConstants.ts	87.10% <100.00%> (+0.05%)	⬆️
...nsions/mssql/src/sharedInterfaces/tableExplorer.ts	100.00% <ø> (ø)
...rc/tableExplorer/tableExplorerWebViewController.ts	91.21% <98.27%> (+1.06%)	⬆️

... and 1 file with indirect coverage changes

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