Search icon click doesn't focus input field ( Date Picker with Custom Input)

[manav-optimas]

Describe the bug
When clicking the Search icon, the input field doesn't automatically gain focus. This requires the user to click twice – once on the icon and again on the input field itself – to start typing.

I am using a ref for the input field but it still does not focus automatically.

To Reproduce

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Steps to reproduce the behavior:

1. Click on the Search icon.
2. Notice that the input field does not automatically gain focus.
3. You have to manually click in the input field to start typing.

Expected behavior
Clicking the Search icon should automatically focus the input field so the user can start typing immediately without an additional click.

Additional context
v.7.5.0