UI server refactoring (#5580)

* Full API in Authenticated WS server.

* Replacing UI server with Hyper.

* Solving CLI, RPCs and tests.

* Porting signer tests.

* Fixing origin recognition for dapps/rpc.

* Fixing tests. Adding parity-rpc-client to test.

* Dapps exposed as RPC method.

* JS code to support new connection scheme.

* Fixing dapps tests.

* Updating allowed origins/hosts to support web3.site.

* Fixing tests, fixing UI.

* Fixing tests.

* Removing invalid tests.

* Fixing merge.

* 404 fallback for UI

* Improve ContentFetcher constructor readability.

* Naming.

* Update .gitlab-ci.yml

fix CI lint error

* Fixing tests and linting issues.

* Fixing new tests.

* UI hosts.

* Submodules fix.

js/src/dapps/registry/ui/image.js

@@ -16,8 +16,6 @@
 
 import React from 'react';
 
-import { parityNode } from '../../../environment';
-
 const styles = {
   padding: '.5em',
   border: '1px solid #777'
@@ -34,7 +32,7 @@ export default (address) => {
 
   return (
     <img
-      src={ `${parityNode}/api/content/${address.replace(/^0x/, '')}` }
+      src={ `/api/content/${address.replace(/^0x/, '')}` }
       alt={ address }
       style={ styles }
     />

js/src/dapps/tokenreg/Tokens/Token/token.js

@@ -30,7 +30,6 @@ import styles from './token.css';
 import { metaDataKeys } from '../../constants';
 
 import { api } from '../../parity';
-import { parityNode } from '../../../../environment';
 
 export default class Token extends Component {
   static propTypes = {
@@ -312,7 +311,7 @@ export default class Token extends Component {
             </span> meta-data:
           </p>
           <div className={ styles['meta-image'] }>
-            <img src={ `${parityNode}/api/content/${imageHash}/` } />
+            <img src={ `/api/content/${imageHash}/` } />
           </div>
         </div>
       );