Changed QWidget -> QMainWindow to allow the application menu bar. QgsInterface returns a new QToolBar when addToolBar is called

[JaumeFigueras]

Proposal to solve issue #13

[JaumeFigueras]

I'm quite new to github. I wanted to create two PR, but my two commits appear in one PR. Also I detected that when a plugin calls the addToolBar function from iface, None was returned. But if this function is called a new toolbar has to be returned to the plugin abling it to add actions.

[codecov-commenter]

Codecov Report

Merging #14 (f7da8c3) into main (0c13246) will decrease coverage by 0.41%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##             main      #14      +/-   ##
==========================================
- Coverage   53.20%   52.79%   -0.42%     
==========================================
  Files           6        6              
  Lines         421      430       +9     
==========================================
+ Hits          224      227       +3     
- Misses        197      203       +6     

Flag	Coverage Δ
pytest	52.79% <33.33%> (-0.42%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/pytest_qgis/qgis_interface.py	37.11% <30.00%> (+0.03%)	⬆️
src/pytest_qgis/pytest_qgis.py	52.78% <50.00%> (-0.23%)	⬇️

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[Joonalai]

Thank you very much for your contribution, it is much appreciated!!

Don't worry about PRs, this is fine if you just modify the title of the PR to address both changes :)

I added some minor comments but other than that, can you just install pre-commit with:

pre-commit install

and that should fix all the code style issues automatically during the next commit. I should add pre-commit instructions to the README.md as well.

[JaumeFigueras]

Hello @Joonalai,
I accepted your suggestions, added the pre-commit install and changed the PR title as requested.
Hope everything is OK now.
Thanks for your help!!

[Joonalai]

Great! Just one more tiny detail :) And I forgot to mention: code style fails, since you did not edit those other files. You have to run pre-commit manually now. Use pre-commit run --all-files in your console.

[JaumeFigueras]

Thank you for your hints.