fix: text color for "Signed by" commit header

deps.ts

@@ -1,2 +1,2 @@
 export * as path from "https://deno.land/std@0.180.0/path/mod.ts";
-export * as sass from "npm:sass-embedded";
+export * as sass from "npm:sass-embedded@1.59.3";

src/_theme.scss

@@ -244,6 +244,11 @@
   background-color: $base;
 }
 
+// link color for signed commits
+.ui.commit-header-row .svg.gitea-lock ~ a {
+  color: $crust;
+}
+
 ::selection {
   background: color.change($rosewater, $alpha: 0.3) !important;
 }