Separated stash create dialog component.

src/stashes.js

@@ -146,7 +146,9 @@ export async function createStash(newStash, sessionUser) {
 			.insert(curateStashEntry(newStash, sessionUser))
 			.returning('*');
 
-		return curateStash(stash);
+		const curatedStash = curateStash(stash);
+
+		return curatedStash;
 	} catch (error) {
 		if (error.routine === '_bt_check_unique') {
 			throw new HttpError('Stash name should be unique', 409);