refactor(teams page): change name _fonts.scss to _icons.scss

Author: fredrik-lundin

src/styles.scss

@@ -1,7 +1,7 @@
 @import '~@angular/material/theming';
 @import './app/operators/operator-theme';
 @import './styles/code-helpers';
-@import './styles/fonts';
+@import './styles/icons';
 
 @include mat-core();
 // Define the theme.