[Feat] : Thinkpads could be primarily saved to local-storage.

[deezeddd]

Thinkpads take around 3-5 seconds and can take longer time to save, which could lead to input-loss if the page is reloaded.

The Solution I propose:

 - saving it to localhost in chunks/queues instantly and then pushing it out to the DB 
     would stop this from happening.
 - Optimization of this process to further decrease the saving time and improve user experience.   
 - Saving Toast could be improved.

Further discussion could be done on the approach.