grc:Notify user when GRC file was last opened in older GNU Radio

[ZakyHermawan]

Description

Newer versions of GNU Radio might introduce potential behavioral changes compared to older versions.
This PR will make grc notify user if the grc file was last opened in older GNU Radio Version

Related Issue

Fixes #5561

Which blocks/areas does this affect?

gtk gui MainWindow: call function to check grc version
gtk gui Notebook: implement grc version checker here
qt gui dialogs component: implement MessageDialog class
qt gui window: implement grc version checker here

note: also refactor few lines in function close_triggered on qt gui window file due to fix python autoformatter problem

Testing Done

UI Test on gtk and qt gui
how testing is done:

1. Change grc_version on metadata grc file
2. try to open this file
3. do this on both gui library (gtk and qt)

Checklist

• I have read the CONTRIBUTING document.
• I have squashed my commits to have one significant change per commit.
• I have signed my commits before making this PR
• My code follows the code style of this project. See GREP1.md.
• I have updated the documentation where necessary.
• I have added tests to cover my changes, and all previous tests pass.

[willcode]

There is file_format in the grc, already used (in theory) where there are incompatible changes. This is used, for example, in core/platform.py/Platform/parse_flowgraph(). Files will be opened by different versions with no bad effect in most cases, so putting up a warning any time this happens is a bit too aggressive.

The version check logic should be in the core portion of GRC, not duplicated in each GUI.

Where do you see compatibility problems? That would be the thing to address, if possible.

[haakov]

I agree with @willcode. I'm also not sure check_grc_version() belongs in expr_utils.py

[ZakyHermawan]

Thanks for the feedback @haakov @willcode,
I have make some changes to make the notification less aggressive by just put it into console with log.warning

can someone suggest me where to put check_grc_version ?