WCAG 2.1: Link purpose needed in search icon

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X
• Fix Version/s: 7.0.0 DXP FP79, 7.0.10.11 DXP SP11, 7.0.X, 7.1.10 DXP FP10, 7.1.10.2 SP2, 7.1.3 CE GA4
• Component/s: Web Search > Search Widgets
• Labels:
  • ee-ts
  • liferay-dxp-70-sp11
  • liferay-dxp-71-sp2
  • liferay-fixpack-de-79-7010
  • liferay-fixpack-dxp-10-7110
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/liferay/liferay-portal-ee/pull/12899

Search icon showed in SearchPortlet need some attribute in order to ensures links have discernible text (https://www.w3.org/TR/WCAG21/#link-purpose-in-context).

Steps to reproduce:
Start a portal.
Use any Accessibility Tool in order to check WCAG 2.1 (for example Chrome extension Axe).

Current behavior:
Analyzer shows a violation about "Links must have discernible text" ( wcag21-search-icon.png )

Expected behavior:
Analyzer doesn't show this link violation over SearchPortlet