Fixes issue where there's no way to sign into additional tenants for an Azure account

[Benjin]

Pull Request Template – vscode-mssql

Description

Addresses #19516

Checks if any accounts have tenants that haven't granted access to MSSQL, and adds an extra link/button if so. Users can hover over the tenant link to see which tenants are signed into for which accounts.

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	5273 KB	5271 KB	⚪ -2 KB ( 0% )
sql-database-projects VSIX	5668 KB	5668 KB	⚪ 0 KB ( 0% )

[codecov-commenter]

Codecov Report

❌ Patch coverage is 79.59184% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.93%. Comparing base (8ff7681) to head (3d026eb).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...nectionconfig/connectionDialogWebviewController.ts	78.26%	9 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #20757      +/-   ##
==========================================
+ Coverage   65.89%   65.93%   +0.03%     
==========================================
  Files         210      210              
  Lines       19728    19777      +49     
  Branches     2535     2539       +4     
==========================================
+ Hits        12999    13039      +40     
- Misses       6638     6647       +9     
  Partials       91       91              

Files with missing lines	Coverage Δ
...ensions/mssql/src/connectionconfig/azureHelpers.ts	66.32% <100.00%> (+0.17%)	⬆️
...ons/mssql/src/sharedInterfaces/connectionDialog.ts	97.82% <100.00%> (+0.09%)	⬆️
...nectionconfig/connectionDialogWebviewController.ts	59.11% <78.26%> (+1.25%)	⬆️

... and 1 file with indirect coverage changes

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