fixed search so null values don't break mapping

frontend/src/components/UserSearchResults/UserSearchResults.js

@@ -48,40 +48,44 @@ const UserSearchResults = () => {
         <p>
           <strong>Gender:</strong> {personDetails.gender}
         </p>
+
         <p>
           <strong>Degrees:</strong>
         </p>
         <ul>
-          {personDetails.degrees.map((degree, index) => (
+          {(personDetails.degrees || []).map((degree, index) => (
             <li key={index}>
               {degree.degreeYear}, {degree.degreeDepartment} (
               {degree.degreeCollege})
             </li>
           ))}
         </ul>
+
         <p>
           <strong>Addresses:</strong>
         </p>
         <ul>
-          {personDetails.addresses.map((address, index) => (
+          {(personDetails.addresses || []).map((address, index) => (
             <li key={index}>
               {address.city}, {address.state}
             </li>
           ))}
         </ul>
+
         <p>
           <strong>Contact Numbers:</strong>
         </p>
         <ul>
-          {personDetails.contactNumbers.map((contact, index) => (
+          {(personDetails.contactNumbers || []).map((contact, index) => (
             <li key={index}>{contact}</li>
           ))}
         </ul>
+
         <p>
           <strong>Involvements:</strong>
         </p>
         <ul>
-          {personDetails.involvements.map((involvement, index) => (
+          {(personDetails.involvements || []).map((involvement, index) => (
             <li key={index}>{involvement.involvementName}</li>
           ))}
         </ul>