Revert "Merge branch 'issueFour' into 'develop'"

...main/java/com/example/clientproject/data/users/Users.java

...ava/com/example/clientproject/domain/AccountRegister.java

...a/com/example/clientproject/services/UserFavTagSaver.java

...xample/clientproject/services/findUserByEmailService.java

.../clientproject/services/findUserByEmailServiceStatic.java

...com/example/clientproject/services/getAllTagsService.java

...ample/clientproject/services/getAllTagsServiceStatic.java

...lientproject/web/controllers/SignUp/SignUpController.java

...rollers/selectCategories/selectCategoriesControllers.java

src/main/resources/database/schema.sql

src/main/resources/static/css/signUp.css

src/main/resources/static/js/registerUser.js

src/main/resources/static/js/selectCategories.js

src/main/resources/templates/selectCategories.html

src/main/resources/templates/signUp.html

...mple/clientproject/web/controllers/RegisterUserTests.java

...lientproject/web/controllers/selectFavCategoriesTest.java