doc: inconsistent path for serving static files

[surli]

Describe the issue

There is an inconsistency in the documentation regarding serving the static files.
In settings_example.py there is since 4.16:
STATIC_ROOT = os.path.join(CACHE_DIR, "static")

Before 4.16 this value was:
STATIC_ROOT = os.path.join(DATA_DIR, "static")

The impact of this change is that all documentation talking about serving static file should point out that those files are coming from the CACHE_DIR, e.g. in https://docs.weblate.org/en/latest/admin/install.html#serving-static-files and in particular in https://docs.weblate.org/en/latest/admin/install.html#sample-configuration-for-nginx-and-uwsgi where the paths are now wrong.

I just had the issue when performing an upgrade: suddenly my static files were not properly served anymore. I had to change my nginx configuration to fix the problem.

I already tried

• I've read and searched the documentation.
• I've searched for similar issues in this repository.

Steps to reproduce the behavior

Upgrade weblate from 4.15 to 4.16 and apply the changes in settings_example.py

Expected behavior

No response

Screenshots

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Exception traceback

No response

How do you run Weblate?

weblate.org service

Weblate versions

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Weblate deploy checks

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Additional context

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[nijel]

Should be addressed by #9605, review is welcome.

[github-actions]

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