Merge mts to master

AngularApp/prototype/src/app/api.service.ts

AngularApp/prototype/src/app/app.module.ts

...ype/src/app/labeling-window/labeling-window.component.css

...pe/src/app/labeling-window/labeling-window.component.html

...type/src/app/labeling-window/labeling-window.component.ts

AngularApp/prototype/src/app/labels/labels.component.ts

AngularApp/prototype/src/app/main/main.component.html

...pe/src/app/overview-window/overview-window.component.html

...type/src/app/overview-window/overview-window.component.ts

...ototype/src/app/progress-view/progress-view.component.css

...totype/src/app/progress-view/progress-view.component.html

...rototype/src/app/progress-view/progress-view.component.ts

.../prototype/src/app/query-window/query-window.component.ts

AngularApp/prototype/src/app/state.service.ts

...otype/src/app/table-overview/table-overview.component.css

...type/src/app/table-overview/table-overview.component.html

...totype/src/app/table-overview/table-overview.component.ts

...ype/src/app/training-window/training-window.component.css

...pe/src/app/training-window/training-window.component.html

...type/src/app/training-window/training-window.component.ts