message: fix(Demo): fix odd layout for select demo
diff: [formGroup]="myForm"
  novalidate
  fxLayout="column"
  - fxLayout.gt-sm="row wrap"
  fxLayoutGap="1rem"
  >
  - <ts-card tsVerticalSpacing fxFlex>
  + <ts-card tsVerticalSpacing>
  <h3 tsCardTitle tsVerticalSpacing="small--1">
  Single Select
  </h3>
  <br>
  </ng-container>
  - <ts-card tsVerticalSpacing fxFlex>
  + <ts-card tsVerticalSpacing>
  <h3 tsCardTitle tsVerticalSpacing>
  Single Select w/Optgroups
  </h3>
  </ts-card>
  - <ts-card tsVerticalSpacing fxFlex>
  + <ts-card tsVerticalSpacing>
  <h3 tsCardTitle tsVerticalSpacing>
  Multiple
  </h3>
  </ts-card>
  - <ts-card tsVerticalSpacing fxFlex>
  + <ts-card tsVerticalSpacing>
  <h3 tsCardTitle tsVerticalSpacing>
  Multiple w/Optgroups
  </h3>
  </div>
  </ts-card>
  - <ts-card tsVerticalSpacing fxFlex>
  - <h3 tsCardTitle tsVerticalSpacing="small--1">
  + <ts-card tsVerticalSpacing>
  + <h3 tsCardTitle tsVerticalSpacing>
  Single Select w/ Filtering
  </h3>
  