fix(ui): keep helper popups in visual viewport on mobile

Position helper info popups with visualViewport bounds and
max size so they stay on screen. Ignore helper triggers in the
global icon tooltip handler via data-icon-tooltip-ignore.

tests/Feature/GlobalIconTooltipTest.php

@@ -8,6 +8,7 @@ it('uses the custom tooltip for icon actions across layouts', function () {
         ->and($tooltip)
         ->toContain("closest('button, a, [data-tooltip]')")
         ->toContain("target.querySelector('svg')")
+        ->toContain("target.matches('[data-icon-tooltip-ignore]')")
         ->toContain("target.removeAttribute('title')")
         ->toContain('role="tooltip"')
         ->toContain('aria-label')