Update validation and formatting scripts (#10)

* Update validation and formatting scripts
* Update npm script names
* Add a test script which runs all the tests
* Apply prettier to all files in the repository
* Improve logging in validateRules.
  * Log all json validation errors rather than just the first one.
    This also cleans up the iterator in the duplicate check loop.
* Remove unused fields 'last_updated' and 'schema'.
  This prepares the list for stricter JSON validation disallowing
  additional unknown properties.

.github/workflows/test.yml

@@ -2,13 +2,12 @@ name: Node.js CI
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 jobs:
   test:
-
     runs-on: ubuntu-latest
 
     strategy:
@@ -22,5 +21,5 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm ci
-      - run: npm run validate
-      - run: npm run prettier
+      - run: npm run test-formatting
+      - run: npm run test-validate-rules

README.md

@@ -25,11 +25,13 @@ See [CookieBannerRuleList.schema.json](./CookieBannerRuleList.schema.json) and [
 Before submitting run the following commands to ensure the rule list is well formatted and valid:
 
 Install dependencies:
+
 ```
 npm install
 ```
 
 Run tests:
+
 ```
 npm test
 ```