Finished implementation of frontend functionality.

Styling and bugfixing next

backend/src/main/resources/config/secure.yml

@@ -1,14 +0,0 @@
-server:
-  error.include-stacktrace: never
-
-spring:
-  mvc:
-    async.request-timeout: -1
-  jackson.default-property-inclusion: non_null
-  jpa:
-    database-platform: org.hibernate.dialect.H2Dialect
-    hibernate.ddl-auto: update
-    open-in-view: true
-    properties:
-      hibernate:
-        event.merge.entity_copy_observer: allow