fix: Prevent gradual canvas misalignment (#3833)

Co-authored-by: dwelle <luzar.david@gmail.com>

src/packages/excalidraw/CHANGELOG.md

@@ -11,6 +11,14 @@ The change should be grouped under one of the below section and must contain PR
 Please add the latest change on the top under the correct section.
 -->
 
+## Unreleased
+
+## Excalidraw Library
+
+### Fixes
+
+- Prevent gradual misalignment of the canvas due to floating point rounding errors [#3833](https://github.com/excalidraw/excalidraw/pull/3833).
+
 ## 0.9.0 (2021-07-10)
 
 ## Excalidraw API