Fix magnifying glass issue. (#252)

Author: remixie

src/css/custom.css

@@ -1175,6 +1175,7 @@ body {
 
 /* Docusaurus Search Box - Dark Theme Styling */
 .navbar__search-input {
+  background: none;
   background-color: hsl(var(--background) / 0.5) !important;
   border: 1px solid hsl(var(--border) / 0.5) !important;
   border-radius: calc(var(--radius) + 4px) !important;