Task page - task filters v2 (#10053)

* update column.vue, getters/task.js, getters/user.js and add unittests and helpers

* add vue-test-utils pkg + unit test for column.vue

* add unit test column.vue

* update unit tests

* fix linting errors

package-lock.json

@@ -190,6 +190,15 @@
         "@types/babel-types": "7.0.1"
       }
     },
+    "@vue/test-utils": {
+      "version": "1.0.0-beta.12",
+      "resolved": "https://registry.npmjs.org/@vue/test-utils/-/test-utils-1.0.0-beta.12.tgz",
+      "integrity": "sha512-457S/w+VuHnh4jw03ingrVAx8jMbxRz+jGGjoTeEFPZzv20GDzPUauQQqDy71EYw6BiNscC0RGOaLvAcS6BZ9Q==",
+      "dev": true,
+      "requires": {
+        "lodash": "4.17.5"
+      }
+    },
     "JSONStream": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.2.tgz",