Merge branch 'chore/cleanup-code' into 'dev'

src/main/java/NTNU/IDATT1002/controllers/ExploreAlbums.java

...NU/IDATT1002/controllers/components/explore/ImageRow.java

...T1002/controllers/components/exploreAlbums/AlbumHBox.java

...T1002/controllers/components/exploreAlbums/ImageHBox.java

...controllers/components/exploreAlbums/StyledImageView.java

src/main/java/NTNU/IDATT1002/models/Album.java

src/main/java/NTNU/IDATT1002/models/Image.java

src/main/java/NTNU/IDATT1002/models/Login.java

src/main/java/NTNU/IDATT1002/models/User.java

src/main/java/NTNU/IDATT1002/service/TagService.java

src/main/java/NTNU/IDATT1002/utils/Authentication.java

src/main/java/NTNU/IDATT1002/utils/MetaDataExtractor.java