Fixing tooltip for vertical toolbar in schema designer

[aasimkhan30]

Description

Fixes: #21497

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	6402 KB	6402 KB	⚪ 0 KB ( 0% )
sql-database-projects VSIX	7025 KB	7025 KB	⚪ 0 KB ( 0% )
data-workspace VSIX	535 KB	535 KB	⚪ 0 KB ( 0% )

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.54%. Comparing base (ce2d985) to head (482f66a).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #21500   +/-   ##
=======================================
  Coverage   72.54%   72.54%           
=======================================
  Files         330      330           
  Lines       98165    98165           
  Branches     5452     5452           
=======================================
  Hits        71216    71216           
  Misses      26949    26949           

Files with missing lines	Coverage Δ
...nsions/mssql/src/reactviews/common/locConstants.ts	25.14% <100.00%> (ø)

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[Copilot]

Pull request overview

Fixes Schema Designer webview vertical toolbar tooltips so they trigger correctly over the icons, and updates the displayed labels for the Schema Designer and DAB entries (addressing the “DAB” acronym tooltip concern from #21497).

Changes:

• Wrapes vertical ToolbarButtons in Fluent UI Tooltip to correct tooltip hover hitbox behavior.
• Updates Schema Designer/DAB nav label strings in webview loc constants.
• Updates localization assets (bundle.l10n.json + base XLIFF) for the new strings.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
localization/xliff/vscode-mssql.xlf	Adds new trans-units and removes the old “DAB” trans-unit in the base XLIFF.
extensions/mssql/src/reactviews/pages/SchemaDesigner/index.tsx	Wraps toolbar buttons with Tooltip so tooltips show when hovering the icon itself.
extensions/mssql/src/reactviews/common/locConstants.ts	Changes tooltip/nav label strings for Schema Designer and DAB entries.
extensions/mssql/l10n/bundle.l10n.json	Adds/remaps string keys needed by the updated webview labels.

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