Pin React types to 16.x for now

This avoids type conflicts from other deps that depends on just `*`. Type deps
needs to be de-duplicated down to a single version to avoid errors (unlike code
deps).

package.json

@@ -88,7 +88,7 @@
     "@types/flux": "^3.1.9",
     "@types/modernizr": "^3.5.3",
     "@types/node": "^12.19.15",
-    "@types/react": "16.9",
+    "@types/react": "^16.9",
     "@types/react-dom": "^16.9.10",
     "@types/sanitize-html": "^1.27.1",
     "autoprefixer": "^9.8.6",
@@ -144,6 +144,9 @@
     "webpack-cli": "^3.3.12",
     "webpack-dev-server": "^3.11.2"
   },
+  "resolutions": {
+    "**/@types/react": "^16.14"
+  },
   "jest": {
     "testEnvironment": "jest-environment-jsdom-sixteen",
     "testMatch": [

yarn.lock

@@ -1807,15 +1807,7 @@
   dependencies:
     "@types/react" "^16"
 
-"@types/react@*", "@types/react@16.9":
+"@types/react@*", "@types/react@^16", "@types/react@^16.14", "@types/react@^16.9":
-  version "16.9.35"
-  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.9.35.tgz#a0830d172e8aadd9bd41709ba2281a3124bbd368"
-  integrity sha512-q0n0SsWcGc8nDqH2GJfWQWUOmZSJhXV64CjVN5SvcNti3TdEaA3AH0D8DwNmMdzjMAC/78tB8nAZIlV8yTz+zQ==
-  dependencies:
-    "@types/prop-types" "*"
-    csstype "^2.2.0"
-
-"@types/react@^16":
   version "16.14.2"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-16.14.2.tgz#85dcc0947d0645349923c04ccef6018a1ab7538c"
   integrity sha512-BzzcAlyDxXl2nANlabtT4thtvbbnhee8hMmH/CcJrISDBVcJS1iOsP1f0OAgSdGE0MsY9tqcrb9YoZcOFv9dbQ==
@@ -4087,7 +4079,7 @@ cssstyle@^2.2.0:
   dependencies:
     cssom "~0.3.6"
 
-csstype@^2.2.0, csstype@^2.6.7:
+csstype@^2.6.7:
   version "2.6.10"
   resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.6.10.tgz#e63af50e66d7c266edb6b32909cfd0aabe03928b"
   integrity sha512-D34BqZU4cIlMCY93rZHbrq9pjTAQJ3U8S8rfBqjwHxkGPThWFjzZDQpgMJY0QViLxth6ZKYiwFBo14RdN44U/w==