fix(app): keep page pane selected after adding new page to book

Signed-off-by: Deep Panchal <deep302001@gmail.com>

src/app.rs

@@ -163,7 +163,8 @@ impl App {
  .arg(&book.name)
  .status()?;
  tui.enter()?;
- action_tx.send(Action::LoadActiveBookPages)?;
+ action_tx.send(Action::UpdateActiveBookPages)?;
+ action_tx.send(Action::LoadActivePageContent)?;
  } else {
  log::error!("No active book to add page to");
  }