Treewide: Apply dicoding advice on submission 1
* DetailShowActivity.kt
- Re-order "companion object" code position below other code (as kotlin class layout suggestion)
- Use "apply" for binding to avoid re-write binding every want to connect some textview or etc
- Use constant value for genre and include into companion object
* MovieEntity.kt & All Entity
- Use val instead of var when variable aren't supposed to change in other time
* MovieFragment.kt & TvShowFragment.kt
- Avoid use lateinit for binding
While i'm applying several advice from reviewer, there's still some of it that i can't apply it now. Maybe later, and also this is closing for submission 1
