Make DownloadScreen scrollable

app/src/main/java/com/hippo/ehviewer/ui/settings/DownloadScreen.kt

@@ -5,7 +5,11 @@ import android.content.Intent.FLAG_GRANT_WRITE_URI_PERMISSION
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.material3.Icon
@@ -69,8 +73,8 @@ fun DownloadScreen() {
             )
         },
         snackbarHost = { SnackbarHost(snackbarHostState) },
-    ) { padding ->
-        Column(modifier = Modifier.padding(padding).nestedScroll(scrollBehavior.nestedScrollConnection)) {
+    ) { paddingValues ->
+        Column(modifier = Modifier.padding(top = paddingValues.calculateTopPadding()).nestedScroll(scrollBehavior.nestedScrollConnection).verticalScroll(rememberScrollState())) {
             var downloadLocationState by ::downloadLocation.observed
             val cannotGetDownloadLocation = stringResource(id = R.string.settings_download_cant_get_download_location)
             val selectDownloadDirLauncher = rememberLauncherForActivityResult(ActivityResultContracts.OpenDocumentTree()) { treeUri ->
@@ -228,6 +232,7 @@ fun DownloadScreen() {
                     it.printStackTrace()
                 }
             }
+            Spacer(modifier = Modifier.size(paddingValues.calculateBottomPadding()))
         }
     }
 }