Konsisten naming for folder and directory

conf/sender.conf

src/receiver.py

src/receiverLiveViewer.py

src/receiverLiveViewer/Coordinator.py

src/receiverLiveViewer/FileReceiver.py

src/sender.py

src/sender/DirectoryWatcher.py

src/sender/InotifyDetector.py

src/shared/helperScript.py