8.7: Pagination custom links content examples
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 **Primary Actor**: User 
 
 **Scope**: Ngx-bootstrap DEMO / BS version 3&4
 
 **Goal**: Show user custom links content functionality
 
 Main success scenario:
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 1. User opens "Pagination" demo page
 2. User clicks on "Custom links content" sub-menu
 3. Instead of text, pagination should be with arrow links "«" and "‹", "›", "»"
 4. After click on "Last link", "Next link" and "Last link" are disabled, 8th page is active,
   "First link" and "Previous" link are enabled
 5. After click on "First link", "Next link" and "Last link" are enabled, 1st page is active,
   "First link" and "Previous" link are disabled
 6. After click on "Next link", next page is active
 7. After click on "Previous link", previous page is active
 
 Variations:
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 2*. User scrolls to "Custom links content"
