Seafile komplett entfernt, Workspace-Zuweisungen angepasst

- Seafile entfernt: AUR-Paket, systemd-Service, Ansible-Tasks, ~/Seafile Verzeichnis, Doku
- Vivaldi assign korrigiert: WS1 -> WS4:WEB (passend zur neuen Workspace-Struktur)
- Workspace-Doku aktualisiert: WS1-3 frei, WS4:WEB, WS5:EDIT, WS6:FILES

tasks/configure-user.yaml

@@ -23,9 +23,3 @@
   file:
     path: "{{ userhome }}/opt/scripts"
     state: directory
-
-- name: User Configuration - Create Seafile directory
-  become_user: "{{ username }}"
-  file:
-    path: "{{ userhome }}/Seafile"
-    state: directory