Async API improvements "v2" (#672)

* Async API improvements "v2"

**NB: This PR actually changes only 3 files in `libraries/architecture/`. All the other changes are automated refactors to fix the calling code.**

This is a proposal for improvements to our `Async` type as discussed in: https://github.com/vector-im/element-x-android/pull/598/files#r1230664392 and in other chats.

Please bear in mind it is just a proposal, I'd love to hear your feedback about it, especially when it comes to naming: I've tried to make parameter and function names use a terminology similar to what we find in the Kotlin stdlib and its `Result` type.

I'm inclined to like more the non-extension flavours of the new `run*` APIs, though I'd also like your feedback about what API shape you prefer.

### Summary of the changes:
#### Functional
- Adds `exceptionOrNull()` API to complement the existing `dataOrNull()` API.
- Adds `isFailure()`, `isLoading()`, `isSuccess()` and `isUninitialized()` courtesy APIs.
- Renames `executeResult()` to `runUpdatingState()`:
	- Becomes the base API to which all the other similarly named APIs call into.
	- Makes it inline.
	- Adds contract.
	- Passes over any `prevData` to newre Async states.
	- Passes through the `block`s return value.
	- Adds unit tests.
- Renames `execute` to `runCatchingUpdatingState()` and makes it just call into `runUpdatingState()`
- Adds extension function overloads to the `run*` functions to accept `MutableState` as receiver

#### Cosmetics
- Reorders classes and methods in alphabetic order.
- Reorder parameter names to mimic conventions in Kotlin stdlib.
- Adds docstrings where useful.

* Use `fold()`

* rename pop to popFirst

* Add docstrings

* Please Detekt

* Rename exception to error.

* Please detekt

* Update existing usages.

features/invitelist/impl/src/main/kotlin/io/element/android/features/invitelist/impl/InviteListPresenter.kt

@@ -30,7 +30,7 @@ import io.element.android.features.invitelist.impl.model.InviteListInviteSummary
 import io.element.android.features.invitelist.impl.model.InviteSender
 import io.element.android.libraries.architecture.Async
 import io.element.android.libraries.architecture.Presenter
-import io.element.android.libraries.architecture.execute
+import io.element.android.libraries.architecture.runCatchingUpdatingState
 import io.element.android.libraries.designsystem.components.avatar.AvatarData
 import io.element.android.libraries.matrix.api.MatrixClient
 import io.element.android.libraries.matrix.api.core.RoomId
@@ -135,7 +135,7 @@ class InviteListPresenter @Inject constructor(
                 it.acceptInvitation().getOrThrow()
             }
             roomId
-        }.execute(acceptedAction)
+        }.runCatchingUpdatingState(acceptedAction)
     }
 
     private fun CoroutineScope.declineInvite(roomId: RoomId, declinedAction: MutableState<Async<Unit>>) = launch {
@@ -143,7 +143,7 @@ class InviteListPresenter @Inject constructor(
             client.getRoom(roomId)?.use {
                 it.rejectInvitation().getOrThrow()
             } ?: Unit
-        }.execute(declinedAction)
+        }.runCatchingUpdatingState(declinedAction)
     }
 
     private fun RoomSummary.Filled.toInviteSummary(seen: Boolean) = details.run {

features/invitelist/impl/src/main/kotlin/io/element/android/features/invitelist/impl/InviteListView.kt

@@ -58,7 +58,7 @@ fun InviteListView(
 ) {
     if (state.acceptedAction is Async.Success) {
         LaunchedEffect(state.acceptedAction) {
-            onInviteAccepted(state.acceptedAction.state)
+            onInviteAccepted(state.acceptedAction.data)
         }
     }