deploy: Add dev.yml with VSCode install
deploy: Add dev.yml with VSCode install

sil-student-projects/web-languageforge,sil-student-projects/web-languageforge,sil-student-projects/web-languageforge,sil-student-projects/web-languageforge,sil-student-projects/web-languageforge,sil-student-projects/web-languageforge,sil-student-projects/web-languageforge,sil-student-projects/web-languageforge