Consitency: Remove Java-Specific terms from sw-concepts

[lujobi]

E.g. Observable

[lujobi]

Also after one Iteration of Jumpstart:

• S15. Mashine vs Machine typo
• Command-Pattern -> Eher zu Save / Undo, etc Buttons
• Factory vs Abstract Factory timing is not optimal as used in IF segregation part
• Pygame GUI or the like

[lujobi]

• More examples zu systemd and journald
• docker_network_bridge Link funktioniert nicht mehr