[FEAT] Add useTypingEffect Hook

[baliyan9887]

Description The 'useTypingEffect` hook simulates a typing effect by progressively updating the state with randomized delays for a natural feel.

Acceptance Criteria

• [ ] The text parameter must be a non-empty string;
• [ ] A startTyping function must be called to begin the typing
• [ ] IfstartTyping is called multiple times, it resets state before restarting