fix: Retain fullscreen modal as default for those triggered outside of showModal

app/components/Dialogs.tsx

@@ -22,7 +22,7 @@ function Dialogs() {
         <Modal
           key={id}
           isOpen={modal.isOpen}
-          fullscreen={modal.fullscreen}
+          fullscreen={modal.fullscreen ?? false}
           onRequestClose={() => dialogs.closeModal(id)}
           title={modal.title}
         >

app/components/Modal.tsx

@@ -31,7 +31,7 @@ type Props = {
 const Modal: React.FC<Props> = ({
   children,
   isOpen,
-  fullscreen,
+  fullscreen = true,
   title = "Untitled",
   onRequestClose,
 }: Props) => {