refactor(js): Improve JS loading

[Kaikina]

Questions	Answers
Description?	FO Javascript is loaded on every FO page, BO javascript is loaded on every BO page. This PR aims to improve JS loading. On BO, JS is loaded only when loading the configuration page of the module inside getContent() method. For FO, we have two logics. First, for the customer account part, as we use a custom front controller, we use the setMedia() function to register our javascript with the defer attribute. For the product page form, we include the JS directly from the template with a defer attribute.
Type?	improvement
BC breaks?	no
Deprecations?	no
Fixed ticket?	NA
How to test?	NA

[Hlavtox]

I think this is not in line with Prestashop standard. You are forcing a javascript library to be loaded outside the CCC package, outside the footer area. If jQuery is required in the bundle, it may not work due to race condition.

[Kaikina]

I think this is not in line with Prestashop standard. You are forcing a javascript library to be loaded outside the CCC package, outside the footer area. If jQuery is required in the bundle, it may not work due to race condition.

About the CCC, this is true, not a fan of it, but it's true.
Race condition, I do not think as the script is defered.
Anyway, I swapped to a registerJavascript from the hook call.