fix(challenges): fixed regex in a challenge

Fix the regex in use the strong tag to make the text bold in order to only accept Stanford
Yniversity

ISSUES CLOSED: freeCodeCamp/freeCodeCamp#17861

challenges/01-responsive-web-design/applied-visual-design.json

@@ -243,7 +243,7 @@
           "text":
             "The <code>strong</code> tag should wrap around the words \"Stanford University\".",
           "testString":
-            "assert($('strong').text().match(/Stanford University/gi), 'The <code>strong</code> tag should wrap around the words \"Stanford University\".');"
+            "assert($('strong').text().match(/^Stanford University$/gi), 'The <code>strong</code> tag should wrap around the words \"Stanford University\".');"
         }
       ],
       "solutions": [],