feat: redesign the project structure

home/common/starship.nix

@@ -0,0 +1,11 @@
+{config, ...}: {
+  programs.starship = {
+    enable = true;
+    settings = {
+      character = {
+        success_symbol = "[›](bold green)";
+        error_symbol = "[›](bold red)";
+      };
+    };
+  };
+}