refactor documentation structure and enhance markdown support

docs/Getting-Started/Folder-Structure.md

@@ -171,14 +171,12 @@ Games can be tagged with region, revision, or other tags by using parentheses in
 
 Tags can be used to search for games in the search bar. For example, searching for `(USA)` will return all games with the USA tag.
 
-<div style="display: grid; grid-template-columns: 1fr 1fr; gap: 20px;">
+<div class="grid cards" markdown>
 
-<div>
+<div markdown>
 
 #### Supported Languages
 
-The following language tags are recognized by RomM:
-
 | Code   | Language    |
 | ------ | ----------- |
 | Ar     | Arabic      |
@@ -204,12 +202,10 @@ The following language tags are recognized by RomM:
 
 </div>
 
-<div>
+<div markdown>
 
 #### Supported Regions
 
-The following region tags are recognized by RomM:
-
 | Code | Region        |
 | ---- | ------------- |
 | A    | Australia     |

mkdocs.yml

@@ -83,7 +83,9 @@ markdown_extensions:
     - pymdownx.details
     - pymdownx.superfences
     - pymdownx.mark
+    - md_in_html
     - attr_list
+    - tables
     - pymdownx.emoji:
           emoji_index: !!python/name:material.extensions.emoji.twemoji
           emoji_generator: !!python/name:material.extensions.emoji.to_svg