Merge pull request #684 from paperless-ngx/docs-dark-mode

Documentation dark mode

diff --cc docs/_static/css/custom.css
index d3c6fbd86305a1d2c4de294cf16fb394ff02be59,29e2ce44ac11802e2a93a69c6b018327b055bda6..395eaa0d8479efc58c4feb12a45978d44f40cd08
--- 1/docs/_static/css/custom.css
--- 2/docs/_static/css/custom.css
+++ b/docs/_static/css/custom.css
@@@ -188,17 -386,9 +386,17 @@@ a:hover, .wy-breadcrumbs-aside a 
  .wy-menu-vertical li.toctree-l8 a,
  .wy-menu-vertical li.toctree-l9 a,
  .wy-menu-vertical li.toctree-l10 a {
-   color: #5c5962;
+   color: var(--color-text-body);
  }
  
 +a.image-reference, a.image-reference:hover {
 +  background: none !important;
 +}
 +
 +a.image-reference img {
 +  cursor: zoom-in;
 +}
 +
  
  /* Code blocks */
  .rst-content code, .rst-content tt, code {