next-ucap-messenger/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-side.component.scss

::ng-deep .mat-tab-label,
::ng-deep .mat-tab-label-active {
  min-width: 0 !important;
}

::ng-deep .mat-tab-body-wrapper,
::ng-deep .mat-tab-body {
  height: 100%;
}

.container {
  height: 100%;

  mat-tab-group {
    height: 100%;
  }
}