Bump blurhash from 1.1.5 to 2.0.0 (#842)

Bumps [blurhash](https://github.com/woltapp/blurhash) from 1.1.5 to 2.0.0.
- [Release notes](https://github.com/woltapp/blurhash/releases)
- [Commits](https://github.com/woltapp/blurhash/commits)

---
updated-dependencies:
- dependency-name: blurhash
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -21,7 +21,7 @@
     "@matrix-org/olm": "3.2.12",
     "@tippyjs/react": "4.2.6",
     "babel-polyfill": "6.26.0",
-    "blurhash": "1.1.5",
+    "blurhash": "2.0.0",
     "browser-encrypt-attachment": "0.3.0",
     "dateformat": "5.0.3",
     "emojibase-data": "7.0.1",