fix(tooltip): dismiss tooltip on esc

[akashsonune]

https://www.w3.org/WAI/ARIA/apg/patterns/tooltip/

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Documentation.
Examples.
Dashboards Demo.
Playwright report.

Coverage Reports:

• charts-ng
• dashboards-ng
• element-ng
• element-translate-ng
• maps-ng
• native-charts-ng

[gemini-code-assist]

Code Review

This pull request attempts to add functionality to hide the siTooltip directive when the Escape key is pressed. However, the current implementation using a (keydown.escape) host listener is not fully effective as it only works when the directive's element has focus. A more robust solution is suggested, involving listening for global Escape key events within the TooltipRef service using Angular CDK's OverlayRef to ensure the tooltip can be dismissed regardless of focus.

[spike-rabbit]

please add a unit test

[akashsonune]

please add a unit test

Done.

It seems that the navbar expects the tooltip to be open when the menu is closed in one of the tests. The test is failing. because the escape would call the hide() and close the tooltip. So now we check if the tooltip was even visible before calling the hide