Fix qsb in backup screenshot

lawnchair/src/app/lawnchair/preferences2/PreferenceUtils.kt

@@ -4,6 +4,23 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import com.patrykmichalik.preferencemanager.Preference
 import com.patrykmichalik.preferencemanager.firstBlocking
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.drop
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
 
 @Composable
 fun <C, S> Preference<C, S>.asState() = get().collectAsState(initial = firstBlocking())
+
+fun <C, S> Preference<C, S>.subscribeBlocking(
+    scope: CoroutineScope,
+    block: (C) -> Unit,
+) {
+    block(firstBlocking())
+    get()
+        .onEach { block(it) }
+        .drop(1)
+        .distinctUntilChanged()
+        .launchIn(scope = scope)
+}

lawnchair/src/app/lawnchair/qsb/QsbLayout.kt

@@ -19,6 +19,7 @@ import app.lawnchair.launcher
 import app.lawnchair.launcherNullable
 import app.lawnchair.preferences.PreferenceManager
 import app.lawnchair.preferences2.PreferenceManager2
+import app.lawnchair.preferences2.subscribeBlocking
 import app.lawnchair.qsb.providers.AppSearch
 import app.lawnchair.qsb.providers.Google
 import app.lawnchair.qsb.providers.GoogleGo
@@ -68,7 +69,7 @@ class QsbLayout(context: Context, attrs: AttributeSet?) : FrameLayout(context, a
 
         val supportsLens = searchProvider == Google
 
-        preferenceManager2.themedHotseatQsb.onEach(launchIn = viewAttachedScope) { themed ->
+        preferenceManager2.themedHotseatQsb.subscribeBlocking(scope = viewAttachedScope) { themed ->
             setUpBackground(themed)
 
             val iconRes = if (themed) searchProvider.themedIcon else searchProvider.icon