chore(brewfile): minor update/removal

Brewfile

@@ -115,7 +115,6 @@ cask 'font-open-sans'
 cask 'font-open-sans-condensed'
 cask 'font-terminus'
 cask 'font-ubuntu'
-cask 'font-ubuntu-mono-derivative-powerline'
 cask 'font-xkcd'
 
 # Work Apps
@@ -165,7 +164,7 @@ if hostname == 'noct'
   brew 'influxdb'
   brew 'jsonnet-bundler'
   brew 'kubernetes-cli'
-  brew 'kubernetes-helm'
+  brew 'helm'
   brew 'kubectx'
   brew 'mariadb'
   cask 'lens'
@@ -186,8 +185,7 @@ if hostname == 'noct'
   cask 'balenaetcher'
   cask 'calibre'
   cask 'deluge'
-  cask 'discord'
-  cask 'dropbox'
+  cask 'discord-ptb'
   cask 'dropshare'
   cask 'epic-games'
   cask 'evernote'