Simplify .dockerignore without need to list modules

.dockerignore

@@ -4,21 +4,5 @@
 !/Pipfile.lock
 !/entrypoint.sh
 !/plextraktsync.sh
-!/plextraktsync/*.py
-!/plextraktsync/commands/*.py
-!/plextraktsync/config.default.yml
-!/plextraktsync/config/*.py
-!/plextraktsync/decorators/*.py
-!/plextraktsync/logger/*.py
-!/plextraktsync/media/*.py
-!/plextraktsync/mixin/*.py
-!/plextraktsync/plan/*.py
-!/plextraktsync/plex/*.py
-!/plextraktsync/plugin/*.py
-!/plextraktsync/queue/*.py
-!/plextraktsync/rich/*.py
-!/plextraktsync/sync/*.py
-!/plextraktsync/trakt/*.py
-!/plextraktsync/util/*.py
-!/plextraktsync/watch/*.py
+!/plextraktsync/
 !/requirements.txt