Implemented configurable and toggleable button borders. (#279)

* Implemented configurable and toggleable button borders.

* Improve and simplify border logic

* Fix hidden label icon borders.

* Removed button hover property from bar buttons, they dim on hover now by default.

* Rename file.

* Update catppuccin normal theme's storage module color.

* update mocha items

* update mochas

* Update themes to account for borders

scss/style/bar/systray.scss

@@ -9,3 +9,11 @@
 .style2.systray {
     padding: $bar-buttons-padding_y $bar-buttons-padding_x;
 }
+
+.bar_item_box_visible.systray {
+    border: if(
+        $bar-buttons-systray-enableBorder or $bar-buttons-enableBorders,
+        $bar-buttons-borderSize solid if($bar-buttons-monochrome, $bar-buttons-icon, $bar-buttons-systray-border),
+        0em
+    );
+}