chore(folio): add navigation-compose 2.9.2 dependency

Adds the JetBrains KMP navigation-compose library to the shared
module. Used in subsequent commits to replace the hand-rolled
Navigator with a typed-route NavHost.

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

@@ -47,6 +47,7 @@ kotlin {
             implementation(libs.kotlinx.coroutines.core)
             implementation(libs.kotlinx.serialization.json)
             implementation(libs.lifecycle.viewmodel.compose)
+            implementation(libs.navigation.compose)
         }
         androidMain.dependencies {
             implementation(libs.androidx.activity.compose)