style: add button leave edit mode

...g-agencies-edit/admin-funding-agencies-edit.routable.html

...min-institution-edit/admin-institution-edit.routable.html

...ables/admin-license-edit/admin-license-edit.routable.html

...oauth2-client-edit/admin-oauth2-client-edit.routable.html

...ables/admin-orgunit-edit/admin-orgunit-edit.routable.html

...utables/admin-person-edit/admin-person-edit.routable.html

...-policy-edit/admin-preservation-policy-edit.routable.html

...s/routables/admin-role-edit/admin-role-edit.routable.html

...on-policy-edit/admin-submission-policy-edit.routable.html

...s/routables/admin-user-edit/admin-user-edit.routable.html

...ponents/routables/deposit-edit/deposit-edit.routable.html

...ponents/routables/orgunit-edit/orgunit-edit.routable.html

...les/shared-abstract-edit/shared-abstract-edit.routable.ts

src/assets/i18n/de.json

src/assets/i18n/en.json

src/assets/i18n/fr.json