Fix brief comments

Author: pikinier20

scaladoc/resources/dotty_res/styles/scalastyle.css

@@ -566,18 +566,22 @@ footer .pull-right {
   display: inline-block;
 }
 
+.documentableElement.expand .documentableBrief {
+  display: none;
+}
+
 .documentableAnchor {
   position: absolute;
   width: 24px;
   height: 24px;
   background: url('data:image/svg+xml;utf8,<svg width="24" height="24" viewBox="0 0 24 24" fill="darkgray" xmlns="http://www.w3.org/2000/svg"><path d="M21.2496 5.3C20.3496 4.5 19.2496 4 18.0496 4C16.8496 4 15.6496 4.5 14.8496 5.3L10.3496 9.8L11.7496 11.2L16.2496 6.7C17.2496 5.7 18.8496 5.7 19.8496 6.7C20.8496 7.7 20.8496 9.3 19.8496 10.3L15.3496 14.8L16.7496 16.2L21.2496 11.7C22.1496 10.8 22.5496 9.7 22.5496 8.5C22.5496 7.3 22.1496 6.2 21.2496 5.3Z"></path><path d="M8.35 16.7998C7.35 17.7998 5.75 17.7998 4.75 16.7998C3.75 15.7998 3.75 14.1998 4.75 13.1998L9.25 8.6998L7.85 7.2998L3.35 11.7998C1.55 13.5998 1.55 16.3998 3.35 18.1998C4.25 19.0998 5.35 19.4998 6.55 19.4998C7.75 19.4998 8.85 19.0998 9.75 18.1998L14.25 13.6998L12.85 12.2998L8.35 16.7998Z"></path></svg> ');
 }
 
-.documentableBrief {
+.memberDocumentation {
   font-size: 14px;
 }
 
-.documentableBrief>p{
+.memberDocumentation>p{
   margin: .5em 0 0 0;
 }
 

scaladoc/src/dotty/tools/scaladoc/renderers/MemberRenderer.scala

@@ -93,12 +93,13 @@ class MemberRenderer(signatureRenderer: SignatureRenderer)(using DocContext) ext
   }
 
   def memberInfo(m: Member): Seq[AppliedTag] =
+    val comment = m.docs
     val bodyContents = m.docs.fold(Nil)(e => renderDocPart(e.body) :: Nil)
 
     Seq(
-      div(cls := "documentableBrief doc")(bodyContents.take(1)),
+      div(cls := "documentableBrief doc")(comment.flatMap(_.short).fold("")(renderDocPart)),
       div(cls := "cover")(
-        div(cls := "doc")(bodyContents.drop(1)),
+        div(cls := "doc")(bodyContents),
         dl(cls := "attributes")(
           docAttributes(m),
           companion(m),
@@ -169,7 +170,7 @@ class MemberRenderer(signatureRenderer: SignatureRenderer)(using DocContext) ext
         span(cls := "modifiers"), // just to have padding on left
         div(
           div(cls := "originInfo")(originInfo(member):_*),
-          div(cls := "documentableBrief")(memberInfo(member)),
+          div(cls := "memberDocumentation")(memberInfo(member)),
         )
       )
     )