vicinae: support fonts

Link: https://github.com/nix-community/stylix/pull/2375

[noah: polish formatting]
Reviewed-by: Noah Biewesch <dev@noahbiewesch.com>

modules/vicinae/hm.nix

@@ -7,6 +7,15 @@ mkTarget {
         programs.vicinae.settings.launcher_window.opacity = opacity.popups;
       }
     )
+    (
+      { fonts }:
+      {
+        programs.vicinae.settings.font.normal = {
+          family = fonts.sansSerif.name;
+          size = fonts.sizes.applications;
+        };
+      }
+    )
     (
       { colors, polarity }:
       {