Add test for newline sentence

Author: blakeembrey

packages/title-case/src/index.spec.ts

@@ -148,6 +148,7 @@ const TEST_CASES: [string, string, Options?][] = [
   ["21st century", "21st Century"],
   ["foo\nbar", "Foo\nBar"],
   ["foo\nbar\nbaz", "Foo\nBar\nBaz"],
+  ["friday\nthe 13th", "Friday\nThe 13th"],
 ];
 
 describe("swap case", () => {

packages/title-case/src/index.ts

@@ -1,4 +1,4 @@
-const TOKENS = /(\S+)|\s+/g;
+const TOKENS = /(\S+)|\s/g;
 const IS_SPECIAL_CASE = /[\.#][\p{L}\p{N}]/u; // #tag, example.com, etc.
 const IS_MANUAL_CASE = /\p{Ll}(?=[\p{Lu}])/u; // iPhone, iOS, etc.
 const ALPHANUMERIC_PATTERN = /[\p{L}\p{N}]+/gu;
@@ -89,6 +89,7 @@ export function titleCase(
 
     if (!token) {
       result += match;
+      if (match === "\n" || match === "\r") isNewSentence = true;
       continue;
     }