feat(diary): enhance predefined activities management and socket event handling

- Added new API endpoints for managing predefined activities, including retrieval, creation, updating, merging, and deduplication.
- Updated socket event handling to improve the mapping of socket events to domain events, ensuring better integration with the diary service.
- Enhanced repository mappers to support detailed mapping of predefined activities and training statistics, including images and member participation data.
- Introduced new UI strings for managing predefined activities, improving user experience in the diary section.

android-app/settings.gradle.kts

@@ -0,0 +1,18 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "Trainingstagebuch"
+include(":app")