feat(search): Implement linear search with custom comparator

[Raja-89]

Closes #1

[Raja-89]

Hi @lindelwa122 ,
I've successfully implemented the linear search method for Issue #1 as assigned.
I ensured the code uses the custom comparator, handles all edge cases, and passed the local performance test.

The PR is ready for your review when you have a chance! Thanks!

[lindelwa122]

@Raja-89, thanks for the contributions.

[Raja-89]

@Raja-89, thanks for the contributions.
Hey @lindelwa122 !, I think you didn't merge the PR, any reason?

[lindelwa122]

Hey @Raja-89 , I will mark it as hacktoberfest-accepted tomorrow.

[Raja-89]

Hey @Raja-89 , I will mark it as hacktoberfest-accepted tomorrow.

But It is already marked as hactober-accepted, I think it is to be merged.