fix typos and missconfiguration

vars/nerdfonts.yml

@@ -67,7 +67,7 @@ fonts:
   Hack:
     brew: font-hack-nerd-font
   Hasklig:
-    brew: hasklug
+    brew: font-hasklug-nerd-font
   HeavyData:
     brew: font-heavy-data-nerd-font
   Hermit:
@@ -111,7 +111,7 @@ fonts:
   Monoid:
     brew: font-monoid-nerd-font
   NerdFontsSymbolsOnly:
-    brew: symbols-only
+    brew: font-symbols-only-nerd-font
   Noto:
     brew: font-noto-nerd-font
   OpenDyslexic: