Remove redundant network request & Better error handling

1. Check login request only one time per action.
2. Local error handler for email format check and number format check for pick up amount.
3. Global message popup for showing the response of network transactions.
4. Manager & admin can remove tree.
5. Use top search bar to access a specific tree by typing a tree number.
6. Zoom-in to the area automatically when an address is searched.

The database structure can be found in {app-root-foler}/serverconfig/tree_parent.sql