Use bubbletea instead of survey for interacting with TUI (#786)

Fix #772

Reviewed-on: https://gitea.com/gitea/tea/pulls/786
Reviewed-by: Bo-Yi Wu (吳柏毅) <appleboy.tw@gmail.com>

cmd/pulls/merge.go

@@ -46,7 +46,10 @@ var CmdPullsMerge = cli.Command{
 
 		if ctx.Args().Len() != 1 {
 			// If no PR index is provided, try interactive mode
-			return interact.MergePull(ctx)
+			if err := interact.MergePull(ctx); err != nil && !interact.IsQuitting(err) {
+				return err
+			}
+			return nil
 		}
 
 		idx, err := utils.ArgToIndex(ctx.Args().First())