message: fix NanoAccountIdComponent
diff: -import {Component, Input, OnChanges} from '@angular/core';
  +import {Component, Input, OnChanges, HostBinding} from '@angular/core';
  @Component({
  selector: 'app-nano-account-id',
  templateUrl: './nano-account-id.component.html',
  styleUrls: ['./nano-account-id.component.css'],
  - host: {
  - '[class.uk-flex]': 'middle === "auto"'
  - }
  })
  export class NanoAccountIdComponent implements OnChanges {
  - @Input('accountID') accountID: string;
  - @Input('middle') middle: 'on'|'off'|'auto' = 'auto';
  + @HostBinding('class.uk-flex') isFlex: boolean;
  + @Input() accountID: string;
  + @Input() middle: 'on'|'off'|'auto' = 'auto';
  firstCharacters = '';
  middleCharacters = '';
  @@ -20,6 +18,7 @@ export class NanoAccountIdComponent implements OnChanges {
  constructor() { }
  ngOnChanges() {
  + this.isFlex = this.middle === 'auto';
  const accountID = this.accountID;
  const openingChars = 10;
  const closingChars = 5;
  