Add unit tests for getSearchableText utility function

[Copilot]

Overview

Added comprehensive unit tests for the getSearchableText utility function which filters search terms by length and normalizes whitespace.

Change Details (Specifics)

Created Utils/index.test.js with 15 test cases covering:

• Term filtering (removes words ≤2 characters)
• Whitespace normalization (extra, leading, trailing spaces)
• Edge cases (empty input, whitespace-only, single words)
• Boundary conditions (1, 2, 3 character terms)
• Preservation of case and special characters

Example test case:

it('should filter out terms with 2 or fewer characters', () => {
  const result = utils.getSearchableText('hello to a world');
  expect(result).toBe('hello world');
});

Related Ticket(s)

INS-1461

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