Improved form validation and feedback messages (#31)

* form feedback

* format

messages/en.json

@@ -1,4 +1,11 @@
 {
 	"$schema": "https://inlang.com/schema/inlang-message-format",
-	"greeting": "Hello {name}!"
+	"greeting": "Hello {name}!",
+	"email_required": "Email is required",
+	"password_required": "Password is required",
+	"name_required": "Name is required",
+	"email_incorrect": "Email is incorrect",
+	"password_incorrect": "Password is incorrect",
+	"email_inuse": "Email is already in use",
+	"user_not_found": "The user could not be found"
 }