test release to fix keyboard event propagation bug

Warning

This is a test version using the unreleased Excalidraw 0.7.0 package. This version breaks the library due to a breaking change between Excalidra 0.6.0 and 0.7.0. Your library items within Excalidraw will potentially be permanently lost!!! Your Obsidian vault will not be impacted.
fixes #12 and #11

Fixes

Fixes the keyboard even propagation impacting other workspace leaves in Obsidian.

To Install:

Copy the 3 files main.js, manifest.json, styles.css to the vault/.obsidian/plugins/obsidian-excalidraw-plugin/ folder.