Timestamps for Grants

[carletex]

Let's save the timestamp (it seems that Firestore doesn't have any internal ones as I thought) for different actions.

Maybe we can track the timestamp when the grant changes to: "proposed" (apply) | "approved" | "submitted" | "completed" (rejected is not very important, but we could too).

Not sure what approach is best:

type GrantData = {
  timestamps: {
    proposed: number;
    approved: number;
    //.....
}

or

type GrantData = {
  proposedTimestamp:number;
  approvedTimestamp:number
  // ....
}

If we can query / sort them correctly... I guess it doesn't matter

[carletex]

cc @technophile-04

[technophile-04]

Umm I was thinking going with second for simplicity and maybe change name from proposedTimestamp => proposedAt 😂

Because orderBy(fieldName) will be easy and fast.

It seems firebase also supports orderBy(subcollection.filedName) (since in first way we need to create timestamps subcollection).

But yeah I think going with just fieldName will be easy, will draft a PR and we could decide if need to other way 🙌

[carletex]

Sounds great @technophile-04

[Pabl0cks]

Merged in #45