docs: remove white-on-white prev/next footer nav

Disable the navigation.footer feature (the prev/next 'Previous / Home' links) and
hide the empty footer-meta bar. The links were rendering white text on the white
footer background on every page.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: rvguha

docs/stylesheets/custom.css

@@ -87,9 +87,11 @@ html[data-md-color-scheme="slate"] .md-typeset pre {
   margin-top: 1.5rem !important;
 }
 
-.md-footer {
-  border-top: 1px solid var(--md-default-fg-color--lightest) !important;
-  background-color: var(--md-default-bg-color) !important;
+/* prev/next nav (navigation.footer) is disabled, and the footer carries no
+   copyright/generator/social, so hide the otherwise-empty meta bar — it was
+   rendering white-on-white "Previous / Home" links at the bottom of every page. */
+.md-footer-meta {
+  display: none !important;
 }
 
 /* Upcoming Cards Grid Layout */

mkdocs.yml

@@ -18,7 +18,6 @@ theme:
     - content.code.copy
     - content.code.select
     - content.tooltips
-    - navigation.footer
     - navigation.indexes
     # navigation.instant disabled: incompatible with StatiCrypt per-page
     # encryption (instant-loading fetches the encrypted template fragment