Add option to customize JPEG mode frame size in menuconfig

[maruta]

This Pull Request provides an option in menuconfig to customize the buffer size for JPEG mode, addressing Issue #663.

• Added a configurable option in Kconfig to choose between the default automatic calculation (width * height / 5) and specifying a custom buffer size.
• The default setting maintains the existing behavior, so it should not affect current code. However, please review carefully as I am not very experienced with this library.

[maruta]

I apologize for the mistake in the initial pull request. I have just corrected the code and pushed the new commits.

[me-no-dev]

I would only suggest to replace "receive size" with "frame size" or "image file size" to make it clear what size is actually being set. "receive size" is a bit ambiguous

[maruta]

@me-no-dev
I agree. I have updated the request and corrected the commit. Thank you for your suggestion.

[me-no-dev]

Thanks @maruta :) It now works

[maruta]

@me-no-dev
Sorry for the oversight. Thanks for your patience!