Fix list spacing on the docs home page (#2966)

A rule left over from when the home page showed its tables of contents
removed the margin after every list on it, so the page used <br/>
blocks to space them. Removes the rule and the workarounds.

Co-authored-by: Paul V Craven <paul.craven@optimizley.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: 3 people

doc/_static/css/custom.css

@@ -122,10 +122,6 @@ title + list appear like other categories */
 .toctree-wrapper a:hover {
     text-decoration: underline;
 }
-#the-python-arcade-library ul {
-    margin-top: 0;
-    margin-bottom: 0;
-}
 .heading-icon {
     columns: 2;
     position: relative;

doc/index.rst

@@ -46,11 +46,6 @@ learn more:
 * :ref:`intro_learning_resources` covers the documentation types
 * :ref:`how-to-get-help` if you're unsure where to start
 
-.. pending: #2433 https://github.com/pythonarcade/arcade/issues/2433
-.. raw:: html
-
-   <br/>
-
 More than Open Source
 ---------------------
 
@@ -60,11 +55,6 @@ Arcade makes sure licensing concerns stay out of your way:
 * :ref:`The built-in resources <resources>` don't require attribution
 * Remixing :ref:`example code <example-code>` is encouraged
 
-.. pending: #2433 https://github.com/pythonarcade/arcade/issues/2433
-.. raw:: html
-
-   <br/>
-
 This ensures you are free to create, including :ref:`commercial projects <faq_commercial>`.
 
 Get Involved
@@ -78,19 +68,9 @@ to reach the team or ask for help:
 * The `Arcade Discord`_ server
 * The `Arcade GitHub`_ repo
 
-.. pending: #2433 https://github.com/pythonarcade/arcade/issues/2433
-.. raw:: html
-
-   <br/>
-
 See :ref:`how-to-contribute` to learn how you can
 help improve Arcade.
 
-.. pending: #2433 https://github.com/pythonarcade/arcade/issues/2433
-.. raw:: html
-
-   <br/>
-
 .. The main table of contents defining the sidebar navigation
    This content is not part of the main page itself.