Spell checking and autocorrect are here !

This releases comes with a very large number of improvements,
support for many languages and new themes!

Huge thanks to the contributors: @10Develops @alotbsol555 @anaskaejdar @andyca111100 @Autissima @bqv @cillyvms @domportera @dzaima @exzombie @FlippingBinary @Harry-Ais0 @Houfalafel @JeelsBoobz @JFronny @Julow @lan700ng @malbajun @matejdro @n-ce @skynetcat @sperareine @Spike-from-NH @xxcavemanxx