fix(folio): build green on Android assemble + iOS framework link

- Drop ksp/metro/navigation3 plugin aliases - not actually applied
  by any module in this PR (deferred follow-up).
- import awaitAsOne from app.cash.sqldelight.async.coroutines for
  the suspend single-row reads enabled by generateAsync = true.
- Drop kotlin.js.ExperimentalWasmJsInterop opt-in from common
  compilerOptions (it isn't valid for android/jvm targets).
- :app:shared androidMain pulls in androidx.activity:activity-compose
  for the BackHandler actual.

examples/folio/app/shared/build.gradle.kts

@@ -14,7 +14,6 @@ kotlin {
     @OptIn(ExperimentalKotlinGradlePluginApi::class)
     compilerOptions {
         freeCompilerArgs.add("-Xexpect-actual-classes")
-        optIn.add("kotlin.js.ExperimentalWasmJsInterop")
     }
 
     androidTarget {
@@ -48,6 +47,9 @@ kotlin {
             implementation(libs.kotlinx.serialization.json)
             implementation(libs.lifecycle.viewmodel.compose)
         }
+        androidMain.dependencies {
+            implementation(libs.androidx.activity.compose)
+        }
     }
 }