no previews for tools (#122)

Author: hry-gh

.github/workflows/preview.yml

@@ -1,9 +1,6 @@
 name: Deploy PR previews
 
 on:
-  pull_request:
-    branches:
-      - main
   pull_request_target:
     types:
       - opened
@@ -13,6 +10,14 @@ on:
     branches:
       - main
 
+    paths:
+      - "content/**"
+      - "static/**"
+      - "styles/**"
+      - "syntaxes/**"
+      - "templates/**"
+      - "themes/**"
+
 env:
   DEPLOY_REPO_OWNER: OpenDreamProject
   DEPLOY_REPO: od-dm-reference