Shadow root canvas (#4517)

* feat(editor) Introducing a shadow root to the canvas

* fix(editor) Fix up a load of the tests and missing css for shadow root

* fix(tests) Fix up some more tests

* fix(tests) Fixing yet more tests

* fix(editor) Fix emotion support with shadow root

* fix(tests) another one

* fix(tests) turn renderedCanvas into getRenderedCanvas function

* fix(tests) and more

* fix(tests) Fixing some and x-ing some

* fix(tests) Use declarative shadow root in jest tests

* fix(tests) Explicitly state when canvas is rendered in SSR via props

* fix(test) Another test fixed

* fix(tests) Disable already broken parts of Inspector tests

* chore(canvas) Added some clarifications and a FIXME in the canvas via comments

editor/package.json

@@ -105,10 +105,10 @@
     "@babel/standalone": "^7.9.5",
     "@babel/traverse": "7.15.4",
     "@babel/types": "^7.14.2",
-    "@emotion/cache": "^10.0.27",
-    "@emotion/react": "11.1.2",
-    "@emotion/serialize": "1.0.2",
-    "@emotion/styled": "11.0.0",
+    "@emotion/cache": "11.11.0",
+    "@emotion/react": "11.11.1",
+    "@emotion/serialize": "1.1.2",
+    "@emotion/styled": "11.11.0",
     "@emotion/styled-base": "11.0.0",
     "@liveblocks/client": "1.7.1",
     "@liveblocks/react": "1.7.1",
@@ -210,6 +210,7 @@
     "react-router": "6.16.0",
     "react-router-dom": "6.16.0",
     "react-select": "3.1.0",
+    "react-shadow-root": "6.2.0",
     "react-spring": "9.0.0-rc.3",
     "react-syntax-highlighter": "12.2.1",
     "react-timeago": "7.1.0",