Add simple count of views to share links (#4036)

* Add simple count of views to share links

* Remove no longer applicable tests

* Avoid incrementing view count for known bots

server/migrations/20220830215146-add-shares-views.js

@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.addColumn("shares", "views", {
+      type: Sequelize.INTEGER,
+      defaultValue: 0
+    });
+  },
+  down: async (queryInterface) => {
+    await queryInterface.removeColumn("shares", "views");
+  },
+};