Fix testUserFlow integration tests

[manuroe]

Fixes two issues causing testUserFlow integration tests to fail:

• Use Close instead of Cancel button label when dismissing the location picker (button label changed)
• Scroll up before tapping the People button in room details to ensure it's visible on screen

At least, it now passes on my machine:

... but not luck on the CI (yet):
https://github.com/element-hq/element-x-ios/actions/runs/23952355031/job/69862641061
It failed to find the room list search button at UserFlowTests.checkRoomFlows():42:

        // Search for the special test room
        let searchField = app.searchFields.firstMatch
        searchField.clearAndTypeText(Self.integrationTestsRoomName, app: app)

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
914	1	913	0

View the full list of 1 ❄️ flaky test(s)

UserFlowTests::testUserFlow()

Flake rate in main: 64.63% (Passed 162 times, Failed 296 times)

Stack Traces | 664s run time

Failed to get list of active applications: Accessibility error kAXErrorIPCTimeout from AXUIElementCopyMultipleAttributeValues for 1102 (XCUIElement.swift:32)

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