tiny refactor from exercise_found to task_found

app/controllers/exercises_controller.rb

@@ -118,7 +118,7 @@ raise: false
         partial: 'export_actions',
         locals: {
           exercise: @exercise,
-          exercise_found: codeharbor_check[:task_found],
+          task_found: codeharbor_check[:task_found],
           update_right: codeharbor_check[:update_right],
           error: codeharbor_check[:error],
           exported: false,

app/views/exercises/_export_actions.html.slim

@@ -4,7 +4,7 @@
       = t('exercises.export_codeharbor.buttons.retry')
 - else
   - unless exported
-    - if !exercise_found || update_right
+    - if !task_found || update_right
       = button_tag type: 'button', class:'btn btn-primary pull-right export-action export-button', data: {exercise_id: exercise.id} do
         i.fa.fa-check.confirm-icon
         = t('exercises.export_codeharbor.buttons.export')

spec/controllers/exercises_controller_spec.rb

@@ -353,7 +353,7 @@ describe ExercisesController do
 
     let(:post_request) { post :export_external_check, params: {id: exercise.id} }
     let!(:codeharbor_link) { FactoryBot.create(:codeharbor_link, user: user) }
-    let(:external_check_hash) { {message: message, exercise_found: true, update_right: update_right, error: error} }
+    let(:external_check_hash) { {message: message, task_found: true, update_right: update_right, error: error} }
     let(:message) { 'message' }
     let(:update_right) { true }
     let(:error) { nil }