fix: add error messages to view in room

[brainbicycle]

This PR resolves PHIRE-783

Description

I couldn't reproduce view in room not working altogether but did see that we don't handle the unhappy path at all and fail silently when either a user is pointing a non-vertical surface or the cursor is initializing. This might lead people to think it isn't working.

This adds a little error message to explain what is going on when an artwork cannot be placed:

PR Checklist

• I have tested my changes on iOS and Android.
• I hid my changes behind a feature flag, or they don't need one.
• I have included screenshots or videos, or I have not changed the UI.
• I have added tests, or my changes don't require any.
• I added an app state migration, or my changes do not require one.
• I have documented any follow-up work that this PR will require, or it does not require any.
• I have added a changelog entry below, or my changes do not require one.

To the reviewers 👀

• I would like at least one of the reviewers to run this PR on the simulator or device.

Changelog updates

Changelog updates

Cross-platform user-facing changes

iOS user-facing changes

• Add user facing errors to view in room - brian

Android user-facing changes

Dev changes

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[ArtsyOpenSource]

This PR contains the following changes:

• iOS user-facing changes (Add user facing errors to view in room - brian)

Generated by 🚫 dangerJS against 3f251fb

[gkartalis]

Reasonable 👏