Simplify network layer (#175)

* Use Ktor for network requests

* Remove V0 version

* Remove Retrofit dependency

* Fix url

* Update versions of dependencies

* Revert kotlinx-datetime

Due to https://github.com/Kotlin/kotlinx-datetime/issues/304

* Rename leftovers

* Remove OkHttp

* Remove unused manifest

* Remove unused Hilt module

* Fix building empty image URLs

* Use OkHttp as engine for Ktor

* Reduce visibility of internal classes

* Fix first set up test

* Store only auth token, not header

* Remove UnitInfo/FoodInfo/VersionInfo/NewShoppingListItemInfo

* Remove RecipeSummaryInfo and ShoppingListsInfo

* Remove FullShoppingListInfo

* Remove ParseRecipeURLInfo

* Remove FullRecipeInfo

* Sign out if access token does not work

* Rename getVersionInfo method

* Update version name

ui/src/main/kotlin/gq/kirmanak/mealient/ui/ActivityUiState.kt

@@ -5,7 +5,6 @@ data class ActivityUiState(
     val navigationVisible: Boolean = false,
     val searchVisible: Boolean = false,
     val checkedMenuItem: CheckableMenuItem? = null,
-    val v1MenuItemsVisible: Boolean = false,
 ) {
     val canShowLogin: Boolean get() = !isAuthorized