Visual and structural changes of administration area and expand panels

src/frontend/src/app/app-routing.module.ts

src/frontend/src/app/app.module.ts

...management/consent-history/consent-history.component.html

...agement/provider-settings/provider-setting.component.html

...ent-management/schema-change/schema-change.component.html

...consent-management/verb-groups/verb-groups.component.html

...d/src/app/consent-management/wizard/wizard.component.html

...tend/src/app/control-center/control-center.component.html

...tend/src/app/control-center/control-center.component.scss

...ontend/src/app/control-center/control-center.component.ts

src/frontend/src/app/dashboard/dashboard.component.html

src/frontend/src/app/dashboard/dashboard.component.scss

src/frontend/src/app/dashboard/dashboard.component.spec.ts

src/frontend/src/app/dashboard/dashboard.component.ts

src/frontend/src/app/navigation/header/header.component.html

src/frontend/src/locale/messages.de.xlf

src/frontend/src/locale/messages.xlf