FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/@react-native/gradle-plugin/shared-testutil/build.gradle.kts

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import org.gradle.api.tasks.testing.logging.TestExceptionFormat
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+  alias(libs.plugins.kotlin.jvm)
+  alias(libs.plugins.ktfmt)
+}
+
+repositories { mavenCentral() }
+
+group = "com.facebook.react"
+
+dependencies { implementation(libs.junit) }
+
+java { targetCompatibility = JavaVersion.VERSION_11 }
+
+kotlin { jvmToolchain(17) }
+
+tasks.withType<KotlinCompile>().configureEach {
+  compilerOptions {
+    apiVersion.set(KotlinVersion.KOTLIN_1_8)
+    // See comment above on JDK 11 support
+    jvmTarget.set(JvmTarget.JVM_11)
+    allWarningsAsErrors.set(
+        project.properties["enableWarningsAsErrors"]?.toString()?.toBoolean() ?: false
+    )
+  }
+}
+
+tasks.withType<Test>().configureEach {
+  testLogging {
+    exceptionFormat = TestExceptionFormat.FULL
+    showExceptions = true
+    showCauses = true
+    showStackTraces = true
+  }
+}