fix: Generate frontend path as in project.

[caalador]

Set the frontend path to tsconfig correctly for the project depending on where it is found.

Fixes #18973

[github-actions[bot]]

Test Results

1 096 files  ±0  1 096 suites  ±0   1h 21m 21s :stopwatch: +24s 6 978 tests ±0  6 929 :white_check_mark: ±0  49 :zzz: ±0  0 :x: ±0  7 335 runs  +7  7 274 :white_check_mark: +7  61 :zzz: ±0  0 :x: ±0 

Results for commit 107a7a29. ± Comparison against base commit 7f6e3201.

:recycle: This comment has been updated with latest results.

[sonarqubecloud[bot]]

Quality Gate passed

Issues
6 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[vaadin-bot]

This ticket/PR has been released with Vaadin 24.4.0.alpha15 and is also targeting the upcoming stable 24.4.0 version.