feat(Form): expose submit function (#1186)

docs/content/3.forms/10.form.md

@@ -203,6 +203,9 @@ componentProps:
 ## API
 
 ::field-group
+  ::field{name="submit ()" type="Promise<void>"}
+    Triggers form submission.
+  ::
   ::field{name="validate (path?: string, opts: { silent?: boolean })" type="Promise<T>"}
     Triggers form validation. Will raise any errors unless `opts.silent` is set to true.
   ::
@@ -217,5 +220,5 @@ componentProps:
   ::
   ::field{name="errors" type="Ref<FormError[]>"}
     A reference to the array containing validation errors. Use this to access or manipulate the error information.
-  ::
+  :: 
 ::