Replace autosave mixin with utility functions

Everyone can contribute. Help move this issue forward while earning points, leveling up and collecting rewards.

The following discussion from gitlab-ce!25563 should be addressed:

  • @winh started a discussion: (+1 comment)

    I have created the utility functions above because the existing app/assets/javascripts/autosave.js / app/assets/javascripts/notes/mixins/autosave.js add event handlers to elements inside the Vue template outside of the Vue component using jQuery—which is a bad idea

There are two components that should be updated as well:

$ grep -lr 'mixins/autosave' {ee/,}app/assets/javascripts
app/assets/javascripts/notes/components/note_body.vue
app/assets/javascripts/diffs/components/diff_line_note_form.vue
Edited by 🤖 GitLab Bot 🤖