Start working on tree layouting

cove-tui/src/chat.rs

@@ -57,9 +57,10 @@ impl<M: Msg, S: MsgStore<M>> Chat<M, S> {
 
     pub fn render(&mut self, frame: &mut Frame, pos: Pos, size: Size) {
         match self.mode {
-            Mode::Tree => self
-                .tree
-                .render(&mut self.store, &self.room, frame, pos, size),
+            Mode::Tree => {
+                self.tree
+                    .render(&mut self.store, &self.room, &self.cursor, frame, pos, size)
+            }
         }
     }
 }