The list of languages supported with org-babel is now presented as an
org table.
Common variable values in org projects are now shared through one
variable each instead of having the value repeated.
This commit removes the common-lisp layer, as I do not use it anymore.
However, due to college, I need to be able to edit Swift code, hence its
addition.
This commit adds the `languagetool' layer to my Emacs configuration.
Since Emacs 27.1, fonts ligatures are supported with Cairo. The
`unicode-fonts' adds support for such feature using `ligatures.el'.
Due to the modification above, I changed my default font to Cascadia
Code.
