[hotfix] Improve layout of button toggle in general configuration view
<div class="subsection-title">Host and Port</div>
<div fxLayout="column" fxFlex="100">
<div fxLayout="row">
- <div>
+ <div fxLayout="row" fxLayoutAlign="start center">
<mat-button-toggle-group name="protocol" aria-label="Protocol"
formControlName="protocol">
<mat-button-toggle value="http">http</mat-button-toggle>
