fix: 🐛 allow empty style tags in markdown editor (#81)

Pulls in a pre-compiled local branch including the changes from this
`markdown-to-jsx` PR:
quantizor/markdown-to-jsx#296 which in turn
fixes a bug in which empty style attributes (e.g. `<div
style>Foo</div>`) would cause unrecoverable crashes in the markdown
field editor.

packages/markdown/package.json

@@ -30,7 +30,7 @@
     "emotion": "^10.0.17",
     "lodash": "^4.17.15",
     "lodash-es": "^4.17.15",
-    "markdown-to-jsx": "^6.11.0"
+    "markdown-to-jsx": "git://github.com/contentful/markdown-to-jsx.git#7af79aef2b581eaa0b1103e8642d639ba1fab196"
   },
   "devDependencies": {
     "@babel/core": "^7.5.5",

yarn.lock

@@ -12631,10 +12631,9 @@ markdown-table@^1.1.0:
   resolved "https://registry.yarnpkg.com/markdown-table/-/markdown-table-1.1.3.tgz#9fcb69bcfdb8717bfd0398c6ec2d93036ef8de60"
   integrity sha512-1RUZVgQlpJSPWYbFSpmudq5nHY1doEIv89gBtF0s4gW1GF2XorxcA/70M5vq7rLv0a6mhOUccRsqkwhwLCIQ2Q==
 
-markdown-to-jsx@^6.11.0:
+"markdown-to-jsx@git://github.com/contentful/markdown-to-jsx.git#7af79aef2b581eaa0b1103e8642d639ba1fab196":
   version "6.11.0"
-  resolved "https://registry.yarnpkg.com/markdown-to-jsx/-/markdown-to-jsx-6.11.0.tgz#a2e3f2bc781c3402d8bb0f8e0a12a186474623b0"
-  integrity sha512-RH7LCJQ4RFmPqVeZEesKaO1biRzB/k4utoofmTCp3Eiw6D7qfvK8fzZq/2bjEJAtVkfPrM5SMt5APGf2rnaKMg==
+  resolved "git://github.com/contentful/markdown-to-jsx.git#7af79aef2b581eaa0b1103e8642d639ba1fab196"
   dependencies:
     prop-types "^15.6.2"
     unquote "^1.1.0"