* Add links to single routes in main index woocommerce/woocommerce-blocks#4473
* Footer
* Feedback template
* Remove footer from existing MD files
* Add doc footer script
* Apply script to all docs
* Fix examples
* issue template for cart & checkout feedback
* fix example desktop OS (not iOS!)
* delete `withFeedbackPrompt` - not used
* link cart/checkout editor feedback to GitHub issue:
- add new CartCheckoutFeedbackPrompt with specialised text & url
- use in cart/checkout blocks
- tweaked wording of feedback prompt text
* use speech bubble icon to represent feedbackiness
* simplify cart/checkout feedback prompts
* add default labels to all issue templates
* use markdown heading syntax for headings (was basic bold previously)
* tweak wording (remove hint of frustration) and use new "feedback" label