Fix prettier issue

Add v-if directives

Use destroyNote mutation

Pass removeNoteError from the Design index

Remove console logs

Fix problem with click events

- Stop listening click event on the design_discussion component
- Move click event to the wrapping div of it
- Add .self modifier to the click listener
  of the wrapping div of the design_sidebar component
- Update tests

Filter out empty discussions to prevent errors

Implement delete_note_modal component

Remove unnecessary code

Provide unit tests for the delete_note_modal

Cleanup componentss code

Get rid of eslint-disable-line
Update snapshot for the design_note
Rename testing selectors

Generate new locales

Refactor design_note component

Use cache.modify instead of evict
Fix more actions dropdown display logic
Add note field to the destroyNote mutation
Use Sentry for mutation exceptions
Generate new locale

Refactor note deletion

Move all deletion logic to the design_discussion
Remove unnece...