refactor: style fixes in lexer and parser

src/main/wacc/lexer.scala

@@ -33,7 +33,7 @@ val errConfig = new ErrorConfig {
     "false" -> Label("boolean literal"),
     "true" -> Label("boolean literal"),
     "=" -> Label("assignment"),
-    "[" -> Label("array index"),
+    "[" -> Label("array index")
   )
 }
 object lexer {
@@ -88,7 +88,7 @@ object lexer {
     (lexer.nonlexeme.character.ascii).map(c => s"character literal \'$c\'"),
     lexer.nonlexeme.string.ascii.map(s => s"string literal \"$s\""),
 //    lexer.nonlexeme.symbol("()").as("function call, bruh use keyword 'call' to call functions"),
-    character.whitespace.map(_ => ""),
+    character.whitespace.map(_ => "")
   ) ++ desc.symbolDesc.hardKeywords.map { k =>
     lexer.nonlexeme.symbol(k).as(s"keyword $k")
   }