chore(app): add validation for pk for query

[maskeynihal]

Description

Adds required validation for PK key on Query

Related Issue

Partially solves #361

1. Solved Throws 422 error (Expected behaviour) as the validation is added and the API is not called until the required field is added

Motivation and Context

• Throws 422 error and the message is not clear why there was error.

How Has This Been Tested?

• Click on Query and then Run without adding any value in PK input
• Gives message Partition key value is required
• Click on Reset
• Go back to Query tab and error message is removed (reset)

Types of Changes

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Screenshots (if appropriate):