[🐛 Bug]: Python API reference doc for 4.20.0 is missing some pages

[emanlove]

What happened?

The v4.20.0 Python API reference doc is missing some pages. Generally it reflects the docstrings for all the Python Modules. Currently though several modules are missing their pages (ie there is no link to their pages).

How can we reproduce the issue?

1. Goto https://www.selenium.dev/selenium/docs/api/py/api.html 

2. Scroll down to the modules of "WebDriver.firefox" or "Webdriver.safari", "Webdriver.webkitgtk" or "Webdriver.ie" as well as "selenium.webdriver.common.html5.application_cache" (near the top under "Webdriver.common").

3. Note several of the modules are not linked. These should be linked.

For example I should be able to click on "selenium.webdriver.firefox.webdriver" and be able to read about the "get_full_page_screenshot_as_file" function. Or as one can click on "selenium.webdriver.edge.webdriver" (just above the "Webdriver.firefox" section) and see the documentation for edge the same should happen for these other browsers.

Relevant log output

N/A

Operating System

Chrome

Selenium version

N/A

What are the browser(s) and version(s) where you see this issue?

Chrome, Firefox, Safari

What are the browser driver(s) and version(s) where you see this issue?

N/A

Are you using Selenium Grid?

N/A

[github-actions]

@emanlove, thank you for creating this issue. We will troubleshoot it as soon as we can.

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