Fix: Maximize Volume Pane on Start Navigation

[Hafsa-shoaib989]

This PR fixes issue #835 where the volume pane was not being maximized upon starting the navigation.

Changes Made:
Added logic to send a maximize_volume_pane message when navigation starts in default_viewers,py file.
Modified the OnStartNavigationButton function in task_navigator.py file.

Testing:
Tested and verified that the volume pane now automatically maximizes when navigation is initiated.

Hi @henrikkauppi @vhosouza @tfmoraes please review this new Pull request.

[henrikkauppi]

Clicking the start navigation button maximizes the volume viewer but I found a bug with this implementation.

Problems:

• if the volume viewer is already maximized when clicking the start navigation button, then it is not possible to manually restore the volume viewer window to its original smaller size by clicking the restore icon at the top right corner of the window. For example, starting navigation, stopping it, and starting navigation again reproduces this bug. Another way to trigger it is to manually maximize the window and then click start navigation.

Also, please use pre-commit in the future. Instructions on setup and use can be found here.

[henrikkauppi]

There's still a bug where if you start navigation while the volume window is maximized, it is not possible to minimize the volume window no matter what you do after that.

[rmatsuda]

Hi guys,
Thanks for the PR @Hafsa-shoaib989!
Luka´s PR (#827) is performing the maximize after the target mode is set.
I recommend to wait until this PR is accepted, and then check the need of improvements.

[henrikkauppi]

Hi guys, Thanks for the PR @Hafsa-shoaib989! Luka´s PR (#827) is performing the maximize after the target mode is set. I recommend to wait until this PR is accepted, and then check the need of improvements.

I agree, let's wait until Luka's PR is merged.