Introduce BluetoothAddress typealias

This commit introduces a typealias `BluetoothAddress` for `String` to improve code clarity and type safety when dealing with Bluetooth MAC addresses.

The following changes were made:
- Created `BluetoothAddress.kt` defining the typealias.
- Updated various classes to use `BluetoothAddress` instead of `String` for Bluetooth addresses:
    - `RPAChecker`
    - `PopUpReaction`
    - `DeviceSelectionDialogFactory`
    - `MonitorWorker`
    - `GeneralSettings`
    - `BluetoothDevice2`

app/src/main/java/eu/darken/capod/main/ui/settings/general/DeviceSelectionDialogFactory.kt

@@ -1,37 +1,33 @@
 package eu.darken.capod.main.ui.settings.general
 
 import android.content.Context
-import android.content.DialogInterface
 import androidx.appcompat.app.AlertDialog
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import eu.darken.capod.R
 import eu.darken.capod.common.bluetooth.BluetoothDevice2
 
 
-class DeviceSelectionDialogFactory constructor(private val context: Context) {
+class DeviceSelectionDialogFactory(private val context: Context) {
 
     fun create(
         devices: List<BluetoothDevice2>,
         current: BluetoothDevice2?,
         callback: (BluetoothDevice2?) -> Unit
-    ): AlertDialog {
-        return MaterialAlertDialogBuilder(context).apply {
-            setTitle(R.string.settings_maindevice_address_label)
+    ): AlertDialog = MaterialAlertDialogBuilder(context).apply {
+        setTitle(R.string.settings_maindevice_address_label)
 
-            val pairing = devices
-                .map { (it.name ?: "?") to it.address }
-                .plus(context.getString(R.string.settings_maindevice_address_none) to "")
+        val pairing = devices
+            .map { (it.name ?: "?") to it.address }
+            .plus(context.getString(R.string.settings_maindevice_address_none) to "")
 
-            setSingleChoiceItems(
-                pairing.map { it.first }.toTypedArray(),
-                pairing.indexOfFirst { it.second == current?.address ?: "" },
-                DialogInterface.OnClickListener { dialog, which ->
-                    val selected = devices.firstOrNull { it.address == pairing[which].second }
-                    callback(selected)
-                    dialog.dismiss()
-                }
-            )
+        setSingleChoiceItems(
+            pairing.map { it.first }.toTypedArray(),
+            pairing.indexOfFirst { it.second == current?.address }
+        ) { dialog, which ->
+            val selected = devices.firstOrNull { it.address == pairing[which].second }
+            callback(selected)
+            dialog.dismiss()
+        }
 
-        }.create()
-    }
+    }.create()
 }

app/src/main/java/eu/darken/capod/monitor/core/worker/MonitorWorker.kt

@@ -8,6 +8,7 @@ import androidx.work.ForegroundInfo
 import androidx.work.WorkerParameters
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedInject
+import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.common.bluetooth.BluetoothDevice2
 import eu.darken.capod.common.bluetooth.BluetoothManager2
 import eu.darken.capod.common.coroutine.DispatcherProvider
@@ -146,7 +147,7 @@ class MonitorWorker @AssistedInject constructor(
             .setupCommonEventHandlers(TAG) { "MonitorMode" }
             .flatMapLatest { arguments ->
                 val monitorMode = arguments[0] as MonitorMode
-                val mainAddress = arguments[1] as String?
+                val mainAddress = arguments[1] as BluetoothAddress?
 
                 @Suppress("UNCHECKED_CAST")
                 val devices = arguments[2] as Collection<BluetoothDevice2>