fix(log): ensure autoscroll finds correct window

Added logic to find the correct window if the initial target window is
not found. This prevents issues where the autoscroll function fails due
to the target window not being identified correctly.

Author: sidlatau

lua/flutter-tools/log.lua

@@ -59,6 +59,13 @@ local function autoscroll(buf, target_win)
     api.nvim_tabpage_list_wins(0),
     function(item) return item == target_win end
   )
+  if not win then
+    win = utils.find(
+      api.nvim_tabpage_list_wins(0),
+      function(item) return vim.api.nvim_win_get_buf(item) == buf end
+    )
+    if win then M.win = win end
+  end
   if not win then return end
   -- if the dev log is focused don't scroll it as it will block the user from perusing
   if api.nvim_get_current_win() == win then return end