Add Assistant content URLs

This is surfaced in recents on Pixel devices for example.
Docs: https://developer.android.com/guide/app-actions/assistant-sharing

Co-authored-by: Jays2Kings <Jays2Kings@users.noreply.github.com>

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/BrowseSourceScreen.kt

@@ -47,6 +47,7 @@ import eu.kanade.presentation.components.ChangeCategoryDialog
 import eu.kanade.presentation.components.Divider
 import eu.kanade.presentation.components.DuplicateMangaDialog
 import eu.kanade.presentation.components.Scaffold
+import eu.kanade.presentation.util.AssistContentScreen
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.LocalSource
 import eu.kanade.tachiyomi.source.online.HttpSource
@@ -62,10 +63,14 @@ import kotlinx.coroutines.flow.receiveAsFlow
 data class BrowseSourceScreen(
     private val sourceId: Long,
     private val query: String? = null,
-) : Screen {
+) : Screen, AssistContentScreen {
+
+    private var assistUrl: String? = null
 
     override val key = uniqueScreenKey
 
+    override fun onProvideAssistUrl() = assistUrl
+
     @Composable
     override fun Content() {
         val navigator = LocalNavigator.currentOrThrow
@@ -74,7 +79,7 @@ data class BrowseSourceScreen(
         val haptic = LocalHapticFeedback.current
         val uriHandler = LocalUriHandler.current
 
-        val screenModel = rememberScreenModel { BrowseSourceScreenModel(sourceId = sourceId, searchQuery = query) }
+        val screenModel = rememberScreenModel { BrowseSourceScreenModel(sourceId, query) }
         val state by screenModel.state.collectAsState()
 
         val snackbarHostState = remember { SnackbarHostState() }
@@ -87,6 +92,10 @@ data class BrowseSourceScreen(
             context.startActivity(intent)
         }
 
+        LaunchedEffect(screenModel.source) {
+            assistUrl = (screenModel.source as? HttpSource)?.baseUrl
+        }
+
         Scaffold(
             topBar = {
                 Column(modifier = Modifier.background(MaterialTheme.colorScheme.surface)) {