♻️ refactor: all codebase

Completely refactoring the entire old codebase with a new codebase. This change also altered most of the core UI from the old codebase, replacing it with Shadcn with some customizations.

shared/libs/shadcn/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}