CID search fix: empty searches are blocked

[ravishxt]

Now empty searches can not be executed now.

Approach:

• Implemented a if check on the input string
• which updates the state of the search bar component for rendering the error message.
• Additionally changed the outline and placeholder if there is any empty search.

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[ravishxt]

looks good to me @SgtPooki you can proceed further

Will try to meet project's coding style in future.