refactor: replace react-hot-toast with custom toast component, introduce SubmitButton for forms, and migrate status messages to toasts

components/auth/submit-button.tsx

@@ -0,0 +1,31 @@
+"use client";
+
+import { useFormStatus } from "react-dom";
+import { Button } from "poyraz-ui/atoms";
+import { Loader2 } from "lucide-react";
+import React from "react";
+
+interface SubmitButtonProps extends React.ComponentProps<typeof Button> {
+  pendingText?: string;
+}
+
+export function SubmitButton({
+  children,
+  pendingText,
+  ...props
+}: SubmitButtonProps) {
+  const { pending } = useFormStatus();
+
+  return (
+    <Button disabled={pending} {...props}>
+      {pending ? (
+        <>
+          <Loader2 className="h-4 w-4 animate-spin" />
+          {pendingText || children}
+        </>
+      ) : (
+        children
+      )}
+    </Button>
+  );
+}