feat: Import improvements (#3064)

* feat: Split and simplify import/export pages in prep for more options

* minor fixes

* File operations for imports

* test

* icons

server/migrations/20220206225006-add-error-to-file-operation.js

@@ -0,0 +1,13 @@
+"use strict";
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.addColumn("file_operations", "error", {
+      type: Sequelize.STRING,
+      allowNull: true,
+    });
+  },
+  down: async (queryInterface) => {
+    await queryInterface.removeColumn("file_operations", "error");
+  },
+};