feat(journal): add JournalContext to allow closing panel on mobile

src/components/journal/index.ts

@@ -44,3 +44,5 @@ export { ComposePanel } from "./ComposePanel";
 export { JournalInput } from "./JournalInput";
 export { DynamicForm } from "./DynamicForm";
 export { useJournalCompletions, invalidateCompletions } from "./completions";
+export { JournalContext, useJournalContext } from "./JournalContext";
+export type { JournalContextValue } from "./JournalContext";