fix(docs): UMD -> Line Awesome link (#12251)
fix(docs): UMD -> Line Awesome link (#12251)

las la-... icons not working, with Fontawesome migration link, which delivers fas fa-...
quasarframework/quasar,rstoenescu/quasar-framework,quasarframework/quasar,quasarframework/quasar,quasarframework/quasar,rstoenescu/quasar-framework,rstoenescu/quasar-framework