Cookie Consent for YouTube renders as Youtube (lower case T)

[georgestephanis]

When prompting a user to agree to render YouTube videos, this is displaying as Youtube instead, due to the logic that just capitalizes the first letter --

https://github.com/Really-Simple-Plugins/complianz-gdpr/blob/d0c212e6afd4cab95dfb7a610537de137dd7316f/cookiebanner/js/complianz.js#L471

and service_nicename is just service with hyphens replaced with spaces, and let service = obj.getAttribute('data-service'); -- which is all lower-case.

So data-service="youtube" gets its first letter capitalized, but the T never gets re-capitalized.

I'm not sure if modifying the data-service parameter could cause other conflicts, so a hardcoded conditional around line 471 in complianz.js (as previously linked) of if ( 'youtube' === service_nicename ) service_nicename = 'YouTube'; would probably be the easiest fix (albeit not exactly ideal for modularity, but then ... neither is YouTube's capitalization!)

[georgestephanis]

Previous adjustments to account for proper capitalization: #396