Notification events resolving and rendering in batches (#4722)

- Use `NotiticationService.getNotifications()` function so we resolve the events in bulk.
- Added `NotifierResolverQueue` to group the notifications to resolve based on a debounce strategy.
- Batch rendering of these events as notifications.

tests/testutils/src/main/kotlin/io/element/android/tests/testutils/lambda/ParameterMatcher.kt

@@ -24,6 +24,18 @@ fun <T> value(expectedValue: T) = object : ParameterMatcher {
     override fun toString(): String = "value($expectedValue)"
 }
 
+/**
+ * A matcher that matches a value based on a condition.
+ * Can be used to assert that a lambda has been called with a value that satisfies a specific condition.
+ */
+fun <T> matching(check: (T) -> Boolean) = object : ParameterMatcher {
+    override fun match(param: Any?): Boolean {
+        @Suppress("UNCHECKED_CAST")
+        return (param as? T)?.let { check(it) } ?: false
+    }
+    override fun toString(): String = "matching(condition)"
+}
+
 /**
  * A matcher that matches any value.
  * Can be used when we don't care about the value of a parameter.