Update python templates to use package folder instead of src folder

[Pijukatel]

Do not have src fodler in the templates, but rather use package name like it is done in crawlee templates.

Will be done instead of this: apify/crawlee-python#1113 after cli issue is resolved.

[vdusek]

Please update the make's type-check command once this is done -> Makefile#L15:L26.

[B4nan]

should be unblocked today

[Pijukatel]

There are still some unresolved issues with apify run that will manifest when not using src folder.
Those should be resolved before we change templates
apify/apify-cli#766
apify/apify-cli#796

[B4nan]

cc @vladfrangu

[honzajavorek]

FWIW, some (many?) Python project layouts have a src directory: https://www.youtube.com/watch?v=mFyE9xgeKcA But that directory is not a package and src is never a package name. It's a technicality in how the files are structured, but in Python, the filesystem != the package structure.

[Pijukatel]

Well, I am not myself in rush to do this issue. Main concern was to make apify cli work correctly both for crawlee based templates and the template repo templates. That is already done and this story was not even needed. I would wait with this story unless more benefits are clear. Currently I can't think of any serious advantage.