Refactor occurrences folding streams of strings

modules/common/src/main/scala/docspell/common/syntax/StreamSyntax.scala

@@ -14,24 +14,14 @@ import io.circe._
 import io.circe.parser._
 
 trait StreamSyntax {
-
   implicit class StringStreamOps[F[_]](s: Stream[F, String]) {
-
     def parseJsonAs[A](implicit d: Decoder[A], F: Sync[F]): F[Either[Throwable, A]] =
-      s.fold("")(_ + _)
-        .compile
-        .last
-        .map(optStr =>
+      s.compile.string
+        .map(str =>
           for {
-            str <-
-              optStr
-                .map(_.trim)
-                .toRight(new Exception("Empty string cannot be parsed into a value"))
             json <- parse(str).leftMap(_.underlying)
             value <- json.as[A]
           } yield value
         )
-
   }
-
 }