Add Toast Notifications for Task Creation and Updates

[Gowthamimudam]

Implement toast notifications for actions like task creation, deadline extraction, task completion, and errors. This helps users receive instant feedback and improves overall interaction experience.

[Gowthamimudam]

hello @Charushi06 ,I'm intrested to work on this issue,please assign me.

[GouriBiswas]

Hi @Charushi06 , I have already worked on similar toast notification and UI feedback features before, so I’ll be able to resolve this issue quickly and efficiently. Please assign this issue to me.

[dev0051]

Hi @Charushi06 , I reviewed the issue and plan to implement a consistent toast notification system for task creation, deadline extraction, task completion, and error handling while keeping it aligned with the current UI architecture. I’ll first inspect whether a notification library already exists and ensure reusable, non-duplicated implementation with proper success/error states and edge-case handling. I’d love to work on this issue.