Number of AWS accounts is wrong on stats view

[timurista]

Summary

Latest version has a problem when you add multiple AWS accounts.
It shows this

We have 3 accounts registered, but it only shows one.

Reproduce steps

Add multiple AWS accounts

Expected Results

3 account should show up

Actual Results

1 shows up

Fix

The problem is the query in the StatsRep (accountname.keyword)

GET _search
{"query":{"bool":{}},"aggs":{"accounts":{"terms":{"field":"accountname.keyword","size":10000}}}}

in ES if you run the query you get this:

...
  "aggregations": {
    "accounts": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "",
          "doc_count": 49867
        }
      ]
    }

However if you change the accountname to accountid (since not all accounts have a name)
you get the following:
Query

GET _search
{"query":{"bool":{}},"aggs":{"accounts":{"terms":{"field":"accountid.keyword","size":10000}}}}

Result:

...
"aggregations": {
    "accounts": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "xxx",
          "doc_count": 61542
        },
        {
          "key": "xxx3",
          "doc_count": 11758
        },
        {
          "key": "xxx4",
          "doc_count": 1860
        }
      ]
    }
  }

So this file: StatisticsRepositoryImpl.java needs to call accountid. See the associated PR