Update Server (#321)

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package.json

@@ -28,17 +28,17 @@
     "@mathigon/fermat": "1.1.12",
     "@mathigon/hilbert": "1.1.12",
     "@sendgrid/mail": "7.7.0",
-    "@types/bcryptjs": "2.4.4",
-    "@types/compression": "1.7.3",
-    "@types/cookie-parser": "1.4.4",
-    "@types/express": "4.17.18",
-    "@types/express-flash": "0.0.3",
-    "@types/express-session": "1.17.8",
+    "@types/bcryptjs": "2.4.6",
+    "@types/compression": "1.7.5",
+    "@types/cookie-parser": "1.4.6",
+    "@types/express": "4.17.21",
+    "@types/express-flash": "0.0.5",
+    "@types/express-session": "1.17.10",
     "@types/js-yaml": "4.0.5",
-    "@types/lusca": "1.7.2",
+    "@types/lusca": "1.7.4",
     "@types/node-fetch": "2.6.4",
     "@types/pug": "2.0.10",
-    "@types/validator": "13.11.2",
+    "@types/validator": "13.11.7",
     "@webcomponents/custom-elements": "1.6.0",
     "autoprefixer": "10.4.16",
     "autotrack": "2.4.1",