Update Flow to 0.263 (facebook#34269)

This update was a bit more involved.

- `React$Component` was removed, I replaced it with Flow component
types.
- Flow removed shipping the standard library. This adds the environment
libraries back from `flow-typed` which seemed to have changed slightly
(probably got more precise and less `any`s). Suppresses some new type
errors.

Author: kassens

.eslintignore

@@ -28,3 +28,6 @@ packages/react-devtools-shared/src/hooks/__tests__/__source__/__untransformed__/
 packages/react-devtools-shell/dist
 packages/react-devtools-timeline/dist
 packages/react-devtools-timeline/static
+
+# Imported third-party Flow types
+flow-typed/

.eslintrc.js

@@ -581,6 +581,7 @@ module.exports = {
     IteratorResult: 'readonly',
     JSONValue: 'readonly',
     JSResourceReference: 'readonly',
+    mixin$Animatable: 'readonly',
     MouseEventHandler: 'readonly',
     NavigateEvent: 'readonly',
     PropagationPhases: 'readonly',
@@ -619,7 +620,6 @@ module.exports = {
     PropertyIndexedKeyframes: 'readonly',
     KeyframeAnimationOptions: 'readonly',
     GetAnimationsOptions: 'readonly',
-    Animatable: 'readonly',
     ScrollTimeline: 'readonly',
     EventListenerOptionsOrUseCapture: 'readonly',
     FocusOptions: 'readonly',

flow-typed.config.json

@@ -0,0 +1,20 @@
+{
+  "env": [
+    "bom",
+    "cssom",
+    "dom",
+    "geometry",
+    "html",
+    "node",
+    "serviceworkers",
+    "streams",
+    "web-animations"
+  ],
+  "ignore": [
+    "create-react-class",
+    "jest",
+    "regenerator-runtime",
+    "webpack",
+    "ws"
+  ]
+}