feat(rofi): increase launcher contrast

configs/nixos/modules/desktop/session/rofi.nix

@@ -28,6 +28,7 @@ in
       # Stylix supplies the Nord theme.
       programs.rofi = {
         enable = true;
+        font = lib.mkForce "JetBrains Mono 12";
 
         # Application launch is the only mode, kept minimal so the prompt opens
         # as fast as rofi can read the desktop entries.
@@ -40,6 +41,7 @@ in
         theme.window = {
           border = hm.config.lib.formats.rasi.mkLiteral "2px";
           border-color = hm.config.lib.formats.rasi.mkLiteral "#FFFFFF";
+          border-radius = hm.config.lib.formats.rasi.mkLiteral "8px";
         };
       };
     };