🦋 Update Product overview

[josemigallas]

THREESCALE-14090: Product overview page

Replace old left/right and other legacy styles with PF4. Refactor the show template and move presentational stuff into Service decorator.

Before:

After:

[qltysh]

❌ 12 blocking issues (13 total)

Tool	Category	Rule	Count
eslint	Lint	Unsafe return of an any typed value.	3	❌
eslint	Lint	Unsafe assignment of an any value.	3	❌
reek	Lint	ServiceDecorator#friendly_service_settings refers to 'value' more than self (maybe move it to another class?)	2	❌
eslint	Lint	Variable name ProductsUsedListCard must match one of the following formats: camelCase, UPPER_CASE	2	❌
rubocop	Performance	Use filter\_map instead.	1	❌
rubocop	Lint	Prefer assert\_not over refute.	1	❌
qlty	Structure	Function with high complexity (count = 9): friendly_service_settings	1

[josemigallas]

UPDATE: changed term "contract" for "subscription" for consistency with /buyers/service_contracts page: