Feat: Introduce dynamic application name based on build type

This commit introduces a dynamic application name based on the build type.

The `applicationId` in `app/build.gradle.kts` is now determined by the `type` property:
- `app.mlauncher.beta` for type 1
- `app.mlauncher.alpha` for type 2
- `app.mlauncher` for all other types

A new `val applicationName` has been added to facilitate this change.

Author: CreativeCodeCat

app/build.gradle.kts

@@ -28,12 +28,18 @@ val versionNameStr = when (type) {
     else -> baseVersionName
 }
 
+val applicationName = when (type) {
+    1 -> "app.mlauncher.beta"
+    2 -> "app.mlauncher.alpha"
+    else -> "app.mlauncher"
+}
+
 android {
     namespace = "com.github.droidworksstudio.mlauncher"
     compileSdk = 36
 
     defaultConfig {
-        applicationId = "app.mlauncher"
+        applicationId = applicationName
         minSdk = 28
         targetSdk = 36
         versionCode = versionCodeInt