improve the launcher and application switcher, now laucher become plugin based fully

main.css

@@ -6,7 +6,8 @@
 @import url("./styles/workspaces.css");
 @import url("./styles/switcher.css");
 @import url("./styles/osd.css");
-@import url("./styles/launcher_simple.css");
+@import url("./styles/launcher.css");
+@import url("./styles/kanban.css");
 
 * {
   all: unset;
@@ -47,3 +48,20 @@ tooltip > * {
   padding: 6px 10px;
   border-radius: 10px;
 }
+
+#workspaces,
+#workspaces-container,
+#launcher,
+#date-time,
+#music-player,
+#osd,
+#tray,
+#battery,
+#controls,
+#notification-stack-box,
+#metrics,
+#language,
+#applications-dock,
+#dock {
+  box-shadow: 0 0 3px alpha(black, 0.7);
+}