Merge branch 'issueFour' into develop

build.gradle

...java/com/example/clientproject/config/SecurityConfig.java

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

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

.../com/example/clientproject/services/TwoFactorAuthOBJ.java

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

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

...ava/com/example/clientproject/services/newAccountDTO.java

...m/example/clientproject/services/registerUserService.java

...ple/clientproject/services/registerUserServiceStatic.java

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

...rollers/selectCategories/selectCategoriesControllers.java

src/main/resources/database/schema.sql

src/main/resources/static/css/category.css

src/main/resources/static/css/nav.css

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

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

src/main/resources/templates/index.html

src/main/resources/templates/selectCategories.html

src/main/resources/templates/signUp.html