fix(app-phone): аппаратный back — детали → каталог, инфо об очках → пульт

BackHandler в ViewMateApp (DETAILS → CATALOG, GLASSES_INFO → GLASSES);
раньше системная кнопка сворачивала приложение. Проверено на железе.

app-phone/src/main/kotlin/pw/binom/viewmate/phone/ui/ViewMateApp.kt

@@ -1,5 +1,6 @@
 package pw.binom.viewmate.phone.ui
 
+import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
@@ -29,6 +30,9 @@ fun ViewMateApp() {
     var selected by remember { mutableStateOf<JellyfinItem?>(null) }
 
     PhoneTheme {
+        BackHandler(enabled = screen == Screen.DETAILS || screen == Screen.GLASSES_INFO) {
+            screen = if (screen == Screen.GLASSES_INFO) Screen.GLASSES else Screen.CATALOG
+        }
         Scaffold(
             containerColor = PhoneBackground,
             bottomBar = {