Fix merging local language
Fix merging local language

- English language file should not be overridden
- Deep merge

AshDevFr/winternote,summernote/summernote,summernote/summernote,summernote/summernote,AshDevFr/winternote,bebeeteam/summernote,bebeeteam/summernote,bebeeteam/summernote,AshDevFr/winternote