Upgrade is-plain-object to v5.0.0 (#4500)

* Upgrade `is-plain-object` to v5.0.0

The `is-plain-object` package recently had a major version upgrade that
broke libraries which import its default export, such as this one. This
causes issues when other packages in the same application require a
higher version of `is-plain-object`, resulting in an error originating
in Slate's codebase. To remedy this, Slate is now depending on
`is-plain-object@^5.0.0` and its import references across the codebase
have been updated.

Fixes #4499

* Add changeset

Co-authored-by: Dylan Schiemann <dylan@dojotoolkit.org>

packages/slate-history/package.json

@@ -14,7 +14,7 @@
     "dist/"
   ],
   "dependencies": {
-    "is-plain-object": "^3.0.0"
+    "is-plain-object": "^5.0.0"
   },
   "devDependencies": {
     "@babel/runtime": "^7.7.4",

packages/slate-history/src/history.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 import { Operation } from 'slate'
 
 /**

packages/slate-hyperscript/package.json

@@ -14,7 +14,7 @@
     "dist/"
   ],
   "dependencies": {
-    "is-plain-object": "^3.0.0"
+    "is-plain-object": "^5.0.0"
   },
   "devDependencies": {
     "@babel/runtime": "^7.7.4",

packages/slate-hyperscript/src/hyperscript.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 import { Element } from 'slate'
 import {
   createAnchor,

packages/slate-react/package.json

@@ -18,7 +18,7 @@
     "@types/lodash": "^4.14.149",
     "direction": "^1.0.3",
     "is-hotkey": "^0.1.6",
-    "is-plain-object": "^3.0.0",
+    "is-plain-object": "^5.0.0",
     "lodash": "^4.17.4",
     "scroll-into-view-if-needed": "^2.2.20",
     "tiny-invariant": "1.0.6"

packages/slate/package.json

@@ -15,7 +15,7 @@
   ],
   "dependencies": {
     "immer": "^8.0.1",
-    "is-plain-object": "^3.0.0",
+    "is-plain-object": "^5.0.0",
     "tiny-warning": "^1.0.3"
   },
   "devDependencies": {

packages/slate/src/interfaces/editor.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 
 import {
   Ancestor,

packages/slate/src/interfaces/element.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 import { Editor, Node, Path, Descendant, ExtendedType, Ancestor } from '..'
 
 /**

packages/slate/src/interfaces/operation.ts

@@ -1,5 +1,5 @@
 import { ExtendedType, Node, Path, Range } from '..'
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 
 export type BaseInsertNodeOperation = {
   type: 'insert_node'

packages/slate/src/interfaces/point.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 import { produce } from 'immer'
 import { ExtendedType, Operation, Path } from '..'
 

packages/slate/src/interfaces/range.ts

@@ -1,5 +1,5 @@
 import { produce } from 'immer'
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 import { ExtendedType, Operation, Path, Point, PointEntry } from '..'
 
 /**

packages/slate/src/interfaces/text.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 import { Range } from '..'
 import { ExtendedType } from './custom-types'
 import { isDeepEqual } from '../utils/deep-equal'

packages/slate/src/utils/deep-equal.ts

@@ -1,4 +1,4 @@
-import isPlainObject from 'is-plain-object'
+import { isPlainObject } from 'is-plain-object'
 
 /*
   Custom deep equal comparison for Slate nodes.