Fix capitalization for pirates and rats (#26644)

Fix capitalization for pirates and rats (#26644)

* Fix capitalization for pirates and rats

* Deal with replacements better

* Be smarter about caps

* Do last word properly

* Variables named a bit better

* Fix Consistency

* Undo change that's not needed anymore

* Fix up pirate since it doesn't need to check early either

* Make mobster replacin' a bit better anyway

* Remove extra space

* Use capture groups for mobster in', add comments for first and last words

* Slightly more clarification with comments