Fixes for Sphinx version 7.

[sayravai]

Description

Some fixes to make compilation go through with Sphinx v7.4.7, which is apparently slightly stricter with the syntax, and no longer supports the master_doc setting. The master_doc to root_doc change was already made in Sphinx 4.0.0b1 so this should also compile with RST tools 1.4 (not tested).

Testing

Remember to add or update unit tests for new features and changes.

• How to test your changes in A-plus
• How to test accessibility

What type of test did you run?

• Accessibility test using the WAVE extension.
• Django unit tests.
• Selenium tests.
• Other test. (Add a description below)
• Manual testing.

[ADD A DESCRIPTION ABOUT WHAT YOU TESTED MANUALLY]

Did you test the changes in

• Chrome
• Firefox
• This pull request cannot be tested in the browser.

Think of what is affected by these changes and could become broken

Translation

• Did you modify or add new strings in the user interface? (Read about how to create translation)

Programming style

• Did you follow our style guides?
• Did you use Python type hinting in all functions that you added or edited? (type hints for function parameters and return values)

Have you updated the README or other relevant documentation?

• documents inside the doc directory.
• README.md.
• Aplus Manual.
• Other documentation (mention below which documentation).

Is it Done?

• Reviewer has finished the code review
• After the review, the developer has made changes accordingly
• Customer/Teacher has accepted the implementation of the feature

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[ihalaij1]

Nice!

I tested this together with the a-plus-rst-tools PR.
I didn't notice any obvious issues with A+ manual.

I had just one question.

[ihalaij1]

What is the purpose of this slash? Is it needed for some reason?

[sayravai]

I think it was to prevent compilation errors as the table cell was otherwise empty.

[sayravai]

Actually there was a self.assert_has_content() in directives > row.py, line 74 but as that was removed in my PR, this slash should no longer be required.

[ihalaij1]

I removed the slash.