chore: add temporary test directory to .gitignore (#24)

targos · web-flow · commit 0014ffef10e1 · 2021-02-21T19:19:28.000+05:30
This prevents VS Code from detecting changes in the directory while the
tests are running.
diff --git a/.gitignore b/.gitignore
@@ -12,3 +12,4 @@ dist
 package-lock.json
 yarn.lock
 shrinkwrap.yaml
+test/__app/
