📚 - Replace global b-demo-steps class with tui-list_ordered

[nsbarsukov]

Description

1. Delete these lines
   

   taiga-ui/projects/demo/src/styles.less

   Lines 17 to 25 in 8915881

   	.b-demo-steps {
   	list-style-type: decimal;
   	padding-left: 0.9375rem;
   	margin: 1rem 0;
   	& li {
   	margin-bottom: 1.25rem;
   	}
   	}

2. Replace its usage with tui-list_ordered

   Before:

   <ol class="b-demo-steps">
       <li>Blah Blah</li>
   
       <li>TODO</li>
   </ol>

   After:

   <ol class="tui-list tui-list_ordered">
       <li class="tui-list__item">Blah Blah</li>
   
       <li class="tui-list__item">TODO</li>
   </ol>

3. Use <tui-setup /> where it is possible!

   taiga-ui/projects/demo/src/utils/setup.component.ts

   Line 24 in 8915881

   export class TuiSetupComponent {

   For example:
   

   taiga-ui/projects/demo/src/modules/experimental/label/label.template.html

   Lines 42 to 47 in 8915881

   	<ng-template pageTab="Setup">
   	<tui-setup
   	[import]="import"
   	[template]="template"
   	></tui-setup>
   	</ng-template>