Merge remote-tracking branch 'origin/HS_Add_basic_styling_by_CSS' into HS_Add_basic_styling_by_CSS

# Conflicts:
#	src/main/java/no/ntnu/idatt1002/demo/controller/AddIngredientController.java
#	src/main/java/no/ntnu/idatt1002/demo/controller/AllRecipesController.java
#	src/main/java/no/ntnu/idatt1002/demo/controller/IngredientTileController.java
#	src/main/resources/recipes/Fridge.register
#	src/main/resources/style.css
#	src/main/resources/view/IngredientTile.fxml
#	src/main/resources/view/Recipe.fxml