fix: Fix jsdocs in queryAll

[LucsT]

The jsdoc concerning queryAll wasn't showing the correct return (Array of docs)

I propose this correction.
What do you think ?

[Crash--]

I would prefer QueryResult[] since CozyClientDocument[]` is about document, not JSON API related return.

There is a lot of work done in this #1234 in order to try to fix types issue.

[LucsT]

@Crash--
Ok so you want me to add a commit in this PR instead with @returns {Promise<QueryResult[]>}
and close this one ?