show edit note form based on editing state

opentech/static_src/src/app/src/components/Listing/index.js

...tech/static_src/src/app/src/components/Listing/style.scss

...tatic_src/src/app/src/components/NoteListingItem/index.js

...ic_src/src/app/src/components/NoteListingItem/styles.scss

...h/static_src/src/app/src/containers/DisplayPanel/index.js

opentech/static_src/src/app/src/containers/EditNoteForm.js

opentech/static_src/src/app/src/containers/Note.js

opentech/static_src/src/app/src/containers/NoteListing.js

opentech/static_src/src/app/src/redux/reducers/notes.js

opentech/static_src/src/app/src/redux/selectors/notes.js