[Feature] Allow filter/search email template

[mrtuvn]

Not a report bug
In my opinion it's should have this feature when we have a lot of emails in page tester. So we can able to search some email we need to test

[jissereitsma]

Definitely an interesting feature. I'll put it on the roadmap. Thanks!

[mrtuvn]

[Feat2] Also if we are able to add order ID only (product, customer data inside order) will be auto fill to preview. Current if i only use order id some data not include (customer data)
[Feat3] Able to edit/modify template directly inside email test form , content, styles will reflect as same as possible