fix most obvious new style issues

source/ui/composants/Button.ts

source/ui/composants/Icon.ts

source/ui/composants/Modal.ts

source/ui/composants/UploadButton.ts

source/ui/composants/navbar/styles.scss

source/ui/screens/Admin/UsersList.ts

source/ui/screens/Home.ts

source/ui/screens/List.ts

source/ui/screens/SceneHistory.ts

source/ui/screens/UserSettings.ts

source/ui/styles/buttons.scss

source/ui/styles/forms.scss

source/ui/styles/layout.scss

source/ui/styles/tables.scss