Change Currency Selector filter UI

[Siddhantsingh1230]

Description

This PR changes the UI for Currency filter for better UX

Relevant Technical Choices

• Update Header filter component

Testing Instructions

• Go to NPMS
• Open Project Page
• Click on currency ComboBox button
• Choose any Currency

Additional Information:

None

Screenshot/Screencast

Currency.Selector.webm

Checklist

• I have carefully reviewed the code before submitting it for review.
• This code is adequately covered by unit tests to validate its functionality.
• I have conducted thorough testing to ensure it functions as intended.
• A member of the QA team has reviewed and tested this PR (To be checked by QA or code reviewer)

Addresses: #698