Request table now updates for more events

src/main/java/nl/tudelft/ewi/queue/service/LabService.java

...ava/nl/tudelft/ewi/queue/service/NotificationService.java

...ain/java/nl/tudelft/ewi/queue/service/RequestService.java

src/main/java/nl/tudelft/ewi/queue/tasks/RequestTasks.java

src/main/resources/static/css/global.css

src/main/resources/static/js/global.js

src/main/resources/static/js/request_table.js

src/main/resources/templates/layout.html

src/main/resources/templates/request/list.html

src/main/resources/templates/request/list/requesttable.html