Refactoring & Fix: editing group and challenges from user dashboard (#11418)

* Refactoring & Feature: edit/delete group and challenge tasks

- Remove showOption from tasks props
- Pass all needed data to task for understand in mapGetter function which controls we should show
- Improve current solution with edit and delete logic

* Fix: this in template

* Fix & Test: extend tests, fix can Edit/Delete functions

* Fix: allow user edit challenge tasks on dashboard

* Fix: test case after code change

* fix import path

* Fix:

- Extend canEdit and canDelete functions with admin role
- Clarify canEdit and canDelete conditions
- Extend test cases

website/client/src/components/tasks/column.vue

@@ -90,8 +90,8 @@
           :key="task.id"
           :task="task"
           :is-user="isUser"
-          :show-options="showOptions"
           :group="group"
+          :challenge="challenge"
           @editTask="editTask"
           @moveTo="moveTo"
           @taskDestroyed="taskDestroyed"
@@ -372,10 +372,7 @@ export default {
     selectedTags: {},
     taskListOverride: {},
     group: {},
-    showOptions: {
-      type: Boolean,
-      default: true,
-    },
+    challenge: {},
   }, // @TODO: maybe we should store the group on state?
   data () {
     const icons = Object.freeze({