Add tests for highlightMatchedRelease when:
a. One matching substring
b. Two matching substrings
c. Release name ends with last matching substring
d. Release name starts with last matching substring
Modify search to remove leading and trailing whitespace to fix false positive match bug
Adjust highlighlightMatchedRelease to return an array instead of a React Fragment
Modify tests the returned array in place of the previously returned React Fragment
Fixes #3036