Fix the remaining `no-var` failures, which couldn't be handled automatically, in the `src/core/fonts.js` file
Fix the remaining `no-var` failures, which couldn't be handled automatically, in the `src/core/fonts.js` file

timvandermeij/pdf.js,Shoobx/pdf.js,nawawi/pdf.js,mozilla/pdf.js,showpad/mozilla-pdf.js,nawawi/pdf.js,Snuffleupagus/pdf.js,xavier114fch/pdf.js,showpad/mozilla-pdf.js,timvandermeij/pdf.js,mozilla/pdf.js,macroplant/pdf.js,Shoobx/pdf.js,Snuffleupagus/pdf.js,xavier114fch/pdf.js,macroplant/pdf.js,macroplant/pdf.js,timvandermeij/pdf.js,showpad/mozilla-pdf.js,mozilla/pdf.js,nawawi/pdf.js,Snuffleupagus/pdf.js,Shoobx/pdf.js