docs: replace all CardGroup/Card blocks with animated bullet points across all 50 docs pages (#648)

- Fix What's new → link in Info banner (now a proper <a> tag, always clickable)
- Replace 4-stat CardGroup on index with inline premium stats row
- Convert every <CardGroup>/<Card> block site-wide to markdown bullet lists:
  content sections → bold-title bullets with sub-bullets, nav cards → [Title](href) — description
- Add cursor-animated list item hover effects to custom.css:
  green inset left border, subtle background tint, marker color change on hover
- Affects index, getting-started, quickstart, concepts, modules, faq, architecture,
  installation, cookbook, glossary, learning-more, explorer-setup, cli-setup,
  community, contributing-guide, governance, citation, project-license,
  all integrations pages, and all 20+ reference module pages

docs/integrations/snowflake.md

@@ -171,17 +171,7 @@ if not connector.test_connection():
 
 ## See Also
 
-<CardGroup cols={2}>
-  <Card title="Ingest Module" icon="database" href="../reference/ingest">
-    Full SnowflakeIngestor and all other ingestors.
-  </Card>
-  <Card title="Pipeline" icon="gear" href="../reference/pipeline">
-    Use Snowflake ingestion as a pipeline step.
-  </Card>
-  <Card title="Installation" icon="download" href="../installation">
-    All optional dependency extras.
-  </Card>
-  <Card title="Knowledge Graph" icon="diagram-project" href="../reference/kg">
-    Build a KG from ingested Snowflake data.
-  </Card>
-</CardGroup>
+- [Ingest Module](../reference/ingest) — Full SnowflakeIngestor and all other ingestors.
+- [Pipeline](../reference/pipeline) — Use Snowflake ingestion as a pipeline step.
+- [Installation](../installation) — All optional dependency extras.
+- [Knowledge Graph](../reference/kg) — Build a KG from ingested Snowflake data.