perf(errorMessagePrettifier): narrow regex match range

[progfay]

related: #139

The (.*) at the beginning of the regular expression on packages/formatter/src/errorMessagePrettifier.ts#L128 was matching characters that were passed through unchanged (just concatenated as-is to the output).

pretty-ts-errors/packages/formatter/src/errorMessagePrettifier.ts

Line 128 in b1ca17d

/(.*)['“]([^>]*)['”] (type|interface|return type|file|module|is (not )?assignable)/gi,

In this PR, I improved inefficient matching by narrowing the match to cover only the portion that is actually transformed.

[kevinramharak]

I think this is correct, the initial capture doesn't do anything besides causing backtracking once the later parts are matched. And the capture isn't transformed in the replacer function either. Doubt it will be noticeable, but it should technically reduce the work done, and remove another backtracking source in case any (highly unlikely) regex dos attempts are made.