Temporary solution.
Merge branch 'create-playlist-when-record-added'

Implemented a temporary solution to create a playlist before adding a record,
if no playlist at the moment the add-record button is clicked.
It has to be improved, though.
Fixed playlist options width on Chrome. Added max-width property.
Merge branch 'create-playlist-when-record-added'

Fixed a small styling issue. Added max-width for playlist options.
Improved method callbacks.
Refactored callbacks when record adding triggers playlist creation.
Merge branch 'create-playlist-when-record-added'

When a search record add button is clicked, and there is no playlist other than the
sample, a playlist is created before adding the record to it.