feat: contain mobile issue capture focus (Closes #1046)

tests/e2e/test_mobile_offline_issue_release.py

@@ -187,7 +187,17 @@ def test_release_artifact_files_one_mobile_issue_exactly_once_after_offline_relo
 
             new_action.click()
             expect(page.locator("#create-issue-sheet")).to_have_class("create-issue-sheet open")
-            assert page.evaluate("document.activeElement?.id") != "create-issue-title"
+            assert page.evaluate("document.activeElement?.id") == "cancel-new-issue"
+            assert page.evaluate("document.querySelector('main').inert") is True
+            page.keyboard.press("Shift+Tab")
+            assert page.evaluate("document.activeElement.closest('#create-issue-sheet')?.id") == "create-issue-sheet"
+            page.keyboard.press("Escape")
+            expect(page.locator("#create-issue-sheet")).not_to_have_class("create-issue-sheet open")
+            assert page.evaluate("document.activeElement?.dataset.mobileTask") == "new"
+            assert page.evaluate("document.querySelector('main').inert") is False
+            new_action.click()
+            expect(page.locator("#create-issue-sheet")).to_have_class("create-issue-sheet open")
+            assert page.evaluate("document.activeElement?.id") == "cancel-new-issue"
             create_navigation = page.locator(".mobile-create-issue-nav")
             expect(create_navigation).to_be_visible()
             create_navigation_buttons = create_navigation.locator("button")