feat: fixed the pattern attribute to be unicode aware.

Author: d-odumosu

Form-Controls/index.html

@@ -39,7 +39,7 @@ <h1>Product Pick</h1>
                     id="firstname"
                     name="firstname"
                     required
-                    pattern="[A-Za-z]+(?:['\-][A-Za-z]+)*"
+                    pattern="[\p{L}]+(?:['\-][\p{L}]+)*"
                     title="enter a valid name">
         </div>
 
@@ -50,7 +50,7 @@ <h1>Product Pick</h1>
                     id="lastname"
                     name="lastname"
                     required
-                    pattern="[A-Za-z]+(?:['\-][A-Za-z]+)*"
+                    pattern="[\p{L}]+(?:['\-][\p{L}]+)*"
                     title="enter a valid name">
         </div>