build(deps): bump slate from 0.58.3 to 0.59.0 (#36)

Bumps [slate](https://github.com/ianstormtaylor/slate) from 0.58.3 to 0.59.0.
- [Release notes](https://github.com/ianstormtaylor/slate/releases)
- [Changelog](https://github.com/ianstormtaylor/slate/blob/master/Changelog.md)
- [Commits](https://github.com/ianstormtaylor/slate/compare/v0.58.3...v0.59.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

packages/backend/package.json

@@ -31,7 +31,7 @@
     "@types/socket.io": "^2.1.4",
     "automerge": "0.14.0",
     "lodash": "^4.17.15",
-    "slate": "0.58.3",
+    "slate": "0.59.0",
     "socket.io": "^2.3.0",
     "typescript": "^3.8.3"
   },

packages/bridge/package.json

@@ -26,7 +26,7 @@
   },
   "dependencies": {
     "automerge": "0.14.0",
-    "slate": "0.58.3",
+    "slate": "0.59.0",
     "typescript": "^3.8.3"
   },
   "devDependencies": {

packages/client/package.json

@@ -28,7 +28,7 @@
     "@babel/preset-react": "^7.0.0",
     "@slate-collaborative/bridge": "^0.7.0",
     "automerge": "0.14.0",
-    "slate": "0.58.3",
+    "slate": "0.59.0",
     "slate-history": "0.58.3",
     "socket.io-client": "^2.3.0",
     "typescript": "^3.8.3"

packages/example/package.json

@@ -24,7 +24,7 @@
     "react": "^16.9.0",
     "react-dom": "^16.9.0",
     "react-scripts": "3.1.2",
-    "slate": "0.58.3",
+    "slate": "0.59.0",
     "slate-history": "0.58.3",
     "slate-react": "0.58.3",
     "typescript": "^3.8.3"