UI: Refresh source tree when an item source is removed

Browse Source

Previously, calling `obs_source_remove()` on an input would not fully
remove it if there was a scene item of the input on the current scene.

Now, when calling `obs_source_remove()` and there is a scene item of
the removed input on the current scene, the UI refreshes the scene
items, allowing the scene item to be released completely and the
input destroyed.

...

This commit is contained in:

500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f