Apply Prettier to the entire project

This ensures that our tests will be formatted by Prettier, among other things.

.github/workflows/triage-incoming.yaml

@@ -2,7 +2,7 @@ name: Move new issues into triage board
 
 on:
   issues:
-    types: [ opened ]
+    types: [opened]
 
 jobs:
   add-to-project:
@@ -13,13 +13,13 @@ jobs:
         with:
           headers: '{"GraphQL-Features": "projects_next_graphql"}'
           query: |
-              mutation add_to_project($projectid:ID!,$contentid:ID!) {
-                addProjectV2ItemById(input: {projectId: $projectid contentId: $contentid}) {
-                  item {
-                    id
-                  }
+            mutation add_to_project($projectid:ID!,$contentid:ID!) {
+              addProjectV2ItemById(input: {projectId: $projectid contentId: $contentid}) {
+                item {
+                  id
                 }
               }
+            }
           projectid: ${{ env.PROJECT_ID }}
           contentid: ${{ github.event.issue.node_id }}
         env: