feat: more flexible squared property read expression, fixes #643 (#646)

* fix: more flexible squared property read expression, fixes #643

* fix: unecessary error wrapping in browser bundles

* style: update code style and types

* perf: use token.value when evalToken

src/parser/parser.ts

@@ -48,7 +48,7 @@ export class Parser {
       }
       return new HTML(token)
     } catch (e) {
-      if (e instanceof LiquidError) throw e
+      if (LiquidError.is(e)) throw e
       throw new ParseError(e as Error, token)
     }
   }