update: (mostly) latest libraries and updated UI code

[zamulla]

From the sample update: kotlin-hands-on/kmp-networking-and-data-storage#41

[ElviraMustafina]

Issues with the tutorial not related to the pull request:

Create a project, step 3: in Android Studio, you need to choose Generic on the left pane, and then Kotlin Multiplaform. Is it expected?

[ElviraMustafina]

Bullet lists after code samples look confusing, as you're expected to figure out extra steps on your own after adding the provided lines.

[ElviraMustafina]

The use of packages vs directories is inconsistent.

UPD: I replaced directories with packages for the cases where you're trying to add a new directory, but the menu only allows you to create a new package.

[ElviraMustafina]

Missing imports in SpaceXApi.kt:

import com.jetbrains.spacetutorial.entity.RocketLaunch
import io.ktor.client.call.body
import io.ktor.client.request.get

[ElviraMustafina]

For AndroidManifest.xml, if the provided lines are supposed to be placed in the middle of the activity and application sections, then they should be without >. Otherwise, remove the ... following the line.