Refactor (packages/web/src/components/Share.tsx): Function with many returns

[lynseyyyyy]

Issue for this PR

Closes #46

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

This PR refactors getStatusText in packages/web/src/components/Share.tsx to replace the switch statement with a status-to-message lookup. The change removes the Qlty "Function with many returns" warning for getStatusText while keeping the existing status messages, error messages, and the fallback behaviour for unknown status.

I also added a separate testing file for unit tests for each status case and configured the web package tests to run through Turbo in CI.

How did you verify your code works?

1. I created a separate test file named Share.test.ts, which covers all status values, error messages, and the fallback behaviour for unknown status.
2. I ran 'bun test src/components/Share.test.ts` and the result shows 7 passed, 0 failed.
3. I ran `bun test --coverage --coverage-dir=./coverage' to verify that the changed getStatusText code is exercised by tests.
4. I reran Qlty and compared with the baseline results it doesn't show the "Function with many returns" warning for getStatusTextanymore.
5. I ran the web tests through Turbo CI configuration and the result shows 7 passed, 0 failed.

Screenshots / recordings

Qlty before:

Qlty after:

Tests:

Coverage:

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

If you do not follow this template your PR will be automatically rejected.