Tweak workflow, delete .env.sample (#4)

Author: asherf

.env.sample

@@ -62,7 +62,7 @@ jobs:
           path: ./out
           retention-days: 2
   deploy:
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    if: (github.event_name == 'push' || github.event_name == 'workflow_dispatch') && github.ref == 'refs/heads/main'
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}