Implement export and import of camera settings

[adrianusler]

It is now possible to export (/import) camera settings to (/from) an .json file.

Still to be done:

• [x] catch exceptions when json file is faulty or damaged [see coderabbit]
• [x] use tempfile module instead of deleting file with Path(...).unlink() [see coderabbit]

To be done in future work: Adapt window size to the specified width/height values?

[coderabbitai[bot]]

Walkthrough

The recent updates focus on enhancing camera settings management in the molara software package. New functionalities for exporting and importing camera settings have been added both in the GUI and the testing framework, improving user interaction and testing robustness.

Changes

File Path	Change Summary
.../rendering/test_camera.py	Updated methods and imports for camera testing; added new methods for handling camera settings.
src/molara/Gui/main_window.py	Added methods for exporting and importing camera settings via GUI triggers.

Poem

🐇 A CodeRabbit's Ode to Changes 🎉

In the realm of code, where cameras play, New paths we pave, old ones we fray. Export, import, settings anew, Testing the changes, through and through. Hop along, dear code, take flight, For in these updates, we find our delight. 🌟

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 76.82927% with 19 lines in your changes are missing coverage. Please review.

Project coverage is 75.19%. Comparing base (69e8c76) to head (90f4664).

Files	Patch %	Lines
src/molara/Gui/main_window.py	22.22%	14 Missing :warning:
src/molara/Gui/structure_widget.py	40.00%	3 Missing :warning:
src/molara/Rendering/camera.py	93.54%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #366 +/- ## ========================================== + Coverage 74.77% 75.19% +0.41% ========================================== Files 44 44 Lines 3731 3797 +66 ========================================== + Hits 2790 2855 +65 - Misses 941 942 +1 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[Michel-Heinz]

I have merged the PR on the structure customizer. I would like you to use the same interface, where you save the settings in a .json file in the settings/camera directory. You can use the code I wrote in the structure customizer dialog as a reference. Or do you like keeping it a separate format?

[GereonFeldmann]

I am of the same opinion as Michel. I think we should use the same file format for all settings. .json are imo a good option for this. Still .yaml and .toml files would be other options.

I think we should discuss this on the next hackathon.

[adrianusler]

I have changed the file format from .npz to .json @Michel-Heinz @GereonFeldmann

[Michel-Heinz]

Works for me 👍. Can you include the export camera settings to the export that is already there? If you hover ove the export button a new drop down menu should appear with camera and snapshot. I would also suggest moving the import camera setting to the import button, I almost did not find the option. :)

[adrianusler]

Works for me 👍. Can you include the export camera settings to the export that is already there? If you hover ove the export button a new drop down menu should appear with camera and snapshot. I would also suggest moving the import camera setting to the import button, I almost did not find the option. :)

Done @Michel-Heinz.

[Michel-Heinz]

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