Finding dependencies

We need to import the Material Design for Bootstrap dependency, to make that we have 2 alternatives:

• Defining the needed styles in local file in the www/.
• Use a content delivery network (CDN) like cdnjs, where we can find mdb-ui-kit.

mdb_cdn <- "https://cdnjs.cloudflare.com/ajax/libs/"
mdb_css <- paste0(mdb_cdn, "mdb-ui-kit/3.6.0/mdb.min.css")