refactor: enhance news handling and improve content display in various components

app/app.css

@@ -23,6 +23,10 @@ body {
   @apply outline-none;
 }
 
+.ProseMirror-trailingBreak {
+  @apply hidden;
+}
+
 table.dataTable thead > tr {
   border-bottom: 2px solid #c2c2c2;
 }