fix(web): restore role=form on event forms

The styled-to-tailwind migration replaced <StyledEventForm role="form">
with a bare <form>, dropping the explicit ARIA role. A <form> without an
accessible name exposes no "form" role, so getByRole("form") stopped
matching and broke the event-form e2e flows (19 specs). Restore role="form"
on both the timed and someday event forms.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: tyler-dane

packages/web/src/views/Forms/EventForm/EventForm.tsx

@@ -455,6 +455,7 @@ export const EventForm: React.FC<Omit<FormProps, "category">> = memo(
     return (
       <form
         {...props}
+        role="form"
         className="c-event-form"
         name={ID_EVENT_FORM}
         onMouseUp={() => {

packages/web/src/views/Forms/SomedayEventForm/SomedayEventForm.tsx

@@ -161,6 +161,7 @@ export const SomedayEventForm: React.FC<FormProps> = ({
   return (
     <form
       {...props}
+      role="form"
       className="c-event-form"
       name={ID_SOMEDAY_EVENT_FORM}
       onClick={stopPropagation}