[shutdown] ensure kitty pop goes to tty

In notcurses_stop_minimal(), we need to send most of
our resets prior to sending rmcup. rmcup and the kitty
pop, furthermore, need to be going to the ttyfd to match
their opposites. They were previously going to stdout,
meaning the kitty pop wasn't acted on when we redirected
stdout. Closes #2149.

src/lib/notcurses.c

@@ -92,34 +92,35 @@ notcurses_stop_minimal(void* vnc){
   }
   ret |= mouse_disable(&nc->tcache, f);
   ret |= reset_term_attributes(&nc->tcache, f);
-  if(nc->tcache.kittykbd){
-    if(fbuf_emit(f, "\x1b[<u")){
-      ret = -1;
-    }
+  if((esc = get_escape(&nc->tcache, ESCAPE_RMKX)) && fbuf_emit(f, esc)){
+    ret = -1;
   }
+  const char* cnorm = get_escape(&nc->tcache, ESCAPE_CNORM);
+  if(cnorm && fbuf_emit(f, cnorm)){
+    ret = -1;
+  }
+  if(blocking_write(fileno(nc->ttyfp), f->buf, f->used)){
+    ret = -1;
+  }
+  fbuf_reset(f);
   if(nc->tcache.ttyfd >= 0){
     if(nc->tcache.tpreserved){
       ret |= tcsetattr(nc->tcache.ttyfd, TCSAFLUSH, nc->tcache.tpreserved);
     }
+    if(nc->tcache.kittykbd){
+      if(tty_emit("\x1b[<u", nc->tcache.ttyfd)){
+        ret = -1;
+      }
+    }
     if((esc = get_escape(&nc->tcache, ESCAPE_RMCUP))){
-      if(sprite_clear_all(&nc->tcache, f)){
+      if(sprite_clear_all(&nc->tcache, f)){ // send this to f
         ret = -1;
       }
-      if(fbuf_emit(f, esc)){
+      if(tty_emit(esc, nc->tcache.ttyfd)){ // but this goes to ttyfd
         ret = -1;
       }
     }
   }
-  if((esc = get_escape(&nc->tcache, ESCAPE_RMKX)) && fbuf_emit(f, esc)){
-    ret = -1;
-  }
-  const char* cnorm = get_escape(&nc->tcache, ESCAPE_CNORM);
-  if(cnorm && fbuf_emit(f, cnorm)){
-    ret = -1;
-  }
-  if(blocking_write(fileno(nc->ttyfp), f->buf, f->used)){
-    ret = -1;
-  }
   return ret;
 }