é and l character use the same code

[Yerko Palma]

Here https://github.com/gabrielfurini/morsee/blob/master/src/dictionary.js#L13 and here https://github.com/gabrielfurini/morsee/blob/master/src/dictionary.js#L31

There seems to be other repeated chars, like
\n and ä
á and å
g and ö
w and ü