Don't skip first page upon load.
Don't skip first page upon load.

Summary: Whoops. Turns out `InfiniteScroll` passes `pageStart+1` for the initial page, rather than `pageStart`...

Test Plan: Previously wouldn't see the first `limit` logs until messing with `filterOptions` (which would call `getLogs` with the default `page=0`). Now loads latest logs initially.

Reviewers: girts

Reviewed By: girts

Differential Revision: D282

astranis/starlog,astranis/starlog,astranis/starlog,astranis/starlog