Missing properties in IEmailProperties

[jeserkin]

Based on spec https://jmap.io/spec-mail.html#emailget, there should be more properties available. E.g. sentAt, hasAttachment. Did not look through all of them, maybe there are others, that are missing.

Was wondering, whether it wasn't noticed, when type was been created or spec on jmap.io is out of date?

https://github.com/linagora/jmap-client-ts/blob/main/src/types.ts#L235

[chibenwa]

jmap.io is up to date, this implementation likely did not introduce all the types.

Feel free to add the ones you use.