Chore: Update to Angular 7.1.0, Angular Material 7.1.0 and Angular Flex Layout 7.0.0-beta.19

Fix: Prod build will now build properly
TODO: The width of content is very less and everything is squashed

overlord/src/app/settings/settings.module.ts

@@ -21,7 +21,7 @@ import {
 import {ReactiveFormsModule} from '@angular/forms';
 import {CdkTableModule} from '@angular/cdk/table';
 import {A11yModule} from '@angular/cdk/a11y';
-import {FlexLayoutModule, FlexModule} from '@angular/flex-layout';
+import {FlexLayoutModule} from '@angular/flex-layout';
 import {SharedModule} from '../shared/shared.module';
 import {SettingsComponent} from './settings.component';
 import {SettingsRoutingModule} from './settings-routing.module';
@@ -31,7 +31,6 @@ import {SettingsRoutingModule} from './settings-routing.module';
     A11yModule,
     CommonModule,
     CdkTableModule,
-    FlexModule,
     FlexLayoutModule,
     MatAutocompleteModule,
     MatButtonModule,