Added Divya Varun and Letizia Vestito to Monarch Team Page (#956)

### Related issues

Issue-954
Issue -955

### Summary

Added Divya Varun and Letizia Vestito to Monarch Team Page.

- [ ] All tests have passed (or issues created for failing tests)

frontend/src/pages/about/team.json

@@ -48,6 +48,11 @@
         "role": "Staff Scientist",
         "link": "https://github.com/DnlRKorn"
       },
+      {
+        "name": "Divya Varun",
+        "role": "Web Developer",
+        "link": ""
+      },
       {
         "name": "Eric Hurwitz",
         "role": "Postdoctoral Fellow",
@@ -68,6 +73,11 @@
         "role": "Scientific Software Engineer",
         "link": "https://tislab.org/members/kevin-schaper.html"
       },
+      {
+        "name": "Letizia Vestito",
+        "role": "Research fellow in Computational Genomics",
+        "link": "https://www.linkedin.com/in/letiziavestito"
+      },
       {
         "name": "Madan Krishnamurthy",
         "role": "Semantic Engineer",