Minor code change request

[lishid]

Sending back some code review feedback from another plugin:

Don't keep a reference to your view, as you might have a reference to an outdated/detached view. Instead, use workspace.getLeavesOfType(MY_VIEW_TYPE) to get live references to your views.

https://github.com/liamcain/obsidian-calendar-plugin/blob/d620bbac628ac8ac5e1f176ac1bb7be64dc2846e/src/main.ts#L23

Context here: https://github.com/obsidianmd/obsidian-releases/pull/504#issuecomment-933749727