Improve Timeouts & Checks for App Deletion (#30)

# Improve Timeouts & Checks for App Deletion

## ♻️ Current situation & Problem
- We got several reports from UI tests not passing, e.g.,
-
https://github.com/orgs/CS342/discussions/115#discussioncomment-12028403
-
https://github.com/StanfordSpezi/SpeziTemplateApplication/pull/98/files/0a32806a8cecd18d22ce798fe8f9fa11dfeeb150..9d11c271b53579a023382105668cef3c4343e986
- It all seems to be related to a timeout issue that is not waiting for
an app the be removed (which might take some time on the CI)
- 
## ⚙️ Release Notes 
- Improve Timeouts & Checks for App Deletion


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Sources/XCTestExtensions/XCUIApplication+DeleteAndLaunch.swift

@@ -112,12 +112,17 @@ extension XCUIApplication {
             springboard.alerts["Delete “\(appName)”?"].buttons["Delete"].tap()
 #endif
 
-            if springboard.icons[appName].waitForNonExistence(timeout: 2.0) {
-                // If the app had health data stored, deleting the app will show an alert, which we need to dismiss
-                let alertTitle = "There is data from “\(appName)” saved in Health"
-                if springboard.alerts[alertTitle].waitForExistence(timeout: 2) {
-                    springboard.alerts[alertTitle].buttons["OK"].tap()
-                }
+            // If the app had health data stored, deleting the app will show an alert, which we need to dismiss.
+            // We also use this check to provide a 5 second timeout for the app to be deleted.
+            let alertTitle = "There is data from “\(appName)” saved in Health"
+            if springboard.alerts[alertTitle].waitForExistence(timeout: 5.0) {
+                springboard.alerts[alertTitle].buttons["OK"].tap()
+            }
+
+            // Exit the while loop early without a `springboard.icons[appName].firstMatch.waitForExistence(timeout: 10.0)` call.
+            // If the app takes longer to be deleted, this will give it some more time.
+            // Only leads to a delay if we have to delete multiple apps with the same name; otherwise, it exits as soon as the app is removed or even immediately.
+            if springboard.icons[appName].waitForNonExistence(timeout: 10.0) {
                 break
             }
         }