Merge branch 'feat/router' into 'develop'

.env.example

back/src/controllers/habittrackerController.js

back/src/controllers/videoController.js

back/src/models/records.js

back/src/models/routine.js

back/src/models/video.js

back/src/utils/fetchVideoLength.js

back/src/utils/fetchYoutube.js

back/src/videoScrap.js