do not spell check js/css

Author: branfosj

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
       uses: codespell-project/actions-codespell@406322ec52dd7b488e48c1c4b82e2a8b3a1bf630 # v2.1
       with:
         check_filenames: true
-        skip: '*.pdf,.git,*.json'
+        skip: '*.pdf,.git,*.json,*.js,*.css'
         ignore_words_list: 
 
     - name: install mkdocs + plugins