fix(dock_area): fix hiding title window for the first dock

[wyzula-jan]

Description

There is a bespoke logic for showing the title bar in the original QtADS repo which is countering our intended behaviour.

See this method for more info DockContainerWidgetPrivate::addDockAreasToList

[Copilot]

Pull request overview

This PR addresses a Qt ADS behavior where adding a second dock area can force the first dock area’s title bar to become visible again, overriding this project’s stored “show/hide title bar” preference.

Changes:

• Re-applies stored appearance preferences across all existing docks whenever a new dock is added.
• Re-applies dock preferences after re-attaching floating docks.
• Adds a regression test ensuring the first dock’s “hide title bar” preference survives adding a second dock.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
bec_widgets/widgets/containers/dock_area/basic_dock_area.py	Re-applies all docks’ stored preferences after dock additions / re-attachments to counter Qt ADS forcing the first title bar visible.
tests/unit_tests/test_dock_area.py	Adds a regression test covering the “first dock title bar stays hidden after adding second dock” scenario.

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[codecov]

Codecov Report

❌ Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ts/widgets/containers/dock_area/basic_dock_area.py	71.42%	1 Missing and 1 partial ⚠️

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[github-actions]

Benchmark comparison

Threshold: 20% (lower is better).
Result: 0 regression(s), 0 improvement(s) beyond threshold.

No benchmark regression exceeded the configured threshold.

No benchmark improvement exceeded the configured threshold.

All benchmark results

Benchmark	Baseline	Current	Change	Status
BEC IPython client with companion app	2.20399 s	2.00161 s	-9.18%	ok
BEC IPython client without companion app	2.18623 s	2.092 s	-4.31%	ok
Import bec_widgets	0.0131978 s	0.013103 s	-0.72%	ok
tests/unit_tests/benchmarks/test_dock_area_benchmark.py::test_add_waveform_to_dock_area	0.158608 s	0.152346 s	-3.95%	ok