Resolve "The feedback widget is very slow"

.gitmodules

Dockerfile

app/assets/javascripts/md-page.coffee

app/assets/javascripts/require-config.coffee.erb

app/assets/stylesheets/application.scss

app/controllers/feedback_controller.rb

app/javascript/css/feedback.scss

app/javascript/css/pages.scss

app/javascript/packs/application.js

app/javascript/packs/edit-page.js

app/javascript/packs/styles.scss

app/javascript/src/md-page.js

app/models/feedback.rb

app/views/md_single_page/show.html.erb

app/views/shared/_header.html.erb

deps/dtu-core

deps/feedbackjs

package.json

scripts/copy_client_vendor_scripts.sh

scripts/run-server.sh