fix: Unintended scroll reset when switching between view / edit (#1807)

* fix: Don't remount document when switching between edit/read-only
fix: Button vertical alignment when using as=Link

* fix: Bump RME, fixes issue with image behavior changing between read-only/edit without editor remount

* fix: Heading anchor positioning

app/components/Editor.js

@@ -172,6 +172,10 @@ const StyledEditor = styled(RichMarkdownEditor)`
     font-weight: 500;
   }
 
+  .heading-anchor {
+    box-sizing: border-box;
+  }
+
   .heading-name {
     pointer-events: none;
   }