[Accessibility] Navigational tab selected indicated only through visuals

[SushantKafle]

The selected navigational tab only indicated visually. Screen reader (SR) doesn't say which of the navigational tabs is selected.

Solution: One option is to use "aria-current" to convey that the navigation tab is the active / current one. More details here:

• https://www.accessibility-developer-guide.com/examples/sensible-aria-usage/current/

• https://heydonworks.com/article/the-accessible-current-page-link-conundrum/