Use screen label as tab in phoebus

[GDYendell]

Fixes #91

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 89.74%. Comparing base (21cb12e) to head (4e79574).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #113 +/- ## ======================================= Coverage 89.73% 89.74% ======================================= Files 23 23 Lines 1403 1404 +1 ======================================= + Hits 1259 1260 +1 Misses 144 144 ```

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