[Rofi] Fixes rendering and updates styles

home-manager/features/rofi/config/powermenu/colors.rasi

@@ -15,4 +15,4 @@
 
 /* Import color-scheme from `colors` directory */
 
-@import "~/.config/rofi/colors/onedark.rasi"
+@import "~/.config/rofi/colors/tokyonight.rasi"

home-manager/features/rofi/config/powermenu/style.rasi

@@ -35,8 +35,8 @@ window {
     enabled:                     true;
     margin:                      0px;
     padding:                     0px;
-    border:                      0px solid;
-    border-radius:               0px;
+    border:                      2px solid;
+    border-radius:               5px;
     border-color:                @selected;
     cursor:                      "default";
     background-color:            @background;