Issue #139: Use JsonEncoded everywhere possible.

[Joaoeduardoramos]

Please read description here: #139

[vever001]

Just tested this, everything looks good IMO.
Behat and PHPUnit still green locally.

This simple change gives the ability to alter any Webtools JSON content with minimal effort on both sides (oe_webtools and consumers/project owners).
So huge +1 on this.

[vever001]

I see the only place where this was not applied yet is in oe_webtools_analytics_page_attachments().
Is it relevant to apply JsonEncoded there as well? Since there is already an event...

[Joaoeduardoramos]

I see the only place where this was not applied yet is in oe_webtools_analytics_page_attachments(). Is it relevant to apply JsonEncoded there as well? Since there is already an event...

Hi Hervé, I completely missed this comment, a thousand pardons. For me it can stay as it is!

[vever001]

Hi Hervé, I completely missed this comment, a thousand pardons. For me it can stay as it is!

Hi Joao, no worries, this was an explanation mainly for oe_webtools maintainers. It can stay as is.

BTW, I think we could improve further that JsonEncoded class by implementing ArrayAccess, similar to \Drupal\Core\Template\Attribute
That would make it even better but it doesn't necessarily need to be done in this PR.
Hopefully someone will look at this PR because I think it is a great addition in terms of DX and ease of alteration.