config fix

* FLASK_ENV (new in Flask 1.0)
* eslint config (corrects directories and rules)
* minor fixes
Note: still having problems w/ database used by pytest

mpwo_client/src/components/Admin/generic/AdminDetail.jsx

@@ -1,7 +1,6 @@
 import React from 'react'
 import { Helmet } from 'react-helmet'
 import { connect } from 'react-redux'
-import { Link } from 'react-router-dom'
 
 import { deleteData, updateData } from '../../../actions/index'
 

mpwo_client/src/components/Admin/generic/AdminPage.jsx

@@ -39,6 +39,7 @@ export default function AdminPage(props) {
                   </thead>
                   <tbody>
                     { results.map((result, idx) => (
+                      // eslint-disable-next-line react/no-array-index-key
                       <tr key={idx}>
                         { Object.keys(result).map(key => {
                           if (key === 'id') {