add update to the es query for stats repo

[timurista]

Fix for #460
See comments on the Fix section, should be accountid as local es query on kibana confirms
Problem is the query needs to use accountid.
Here's what it returns if it uses the accountid in the stats query
"buckets": [
{
"key": "xxx2",
"doc_count": 61542
},
{
"key": "xxx3",
"doc_count": 11758
},
{
"key": "xxx4",
"doc_count": 1860
}
]
}
}

[CLAassistant]

All committers have signed the CLA.

[timurista]

@kaykumar can you or someone else bump this PR on your radar? It's a simple 1 line change that would improve the UX for this page. At Roku we are hoping to use this to audit AWS resources so we'd like to help contribute to improving this.

[timurista]

looks like this will never be fixed...