Add copyable User Id field

src/profile/ProfileModal.jsx

@@ -52,6 +52,16 @@ export function ProfileModal({
     <Modal title="Profile" isDismissable {...rest}>
       <ModalContent>
         <form onSubmit={onSubmit}>
+          <FieldRow>
+            <InputField
+              id="userId"
+              name="userId"
+              label="User Id"
+              type="text"
+              disabled
+              value={client.getUserId()}
+            />
+          </FieldRow>
           <FieldRow>
             <InputField
               id="displayName"