feat: add some improvements to CharacterCount extension (#2256), fix #1049, fix #1550, fix #1839, fix #2245

* fix a bug when exceeding the character limit

* find a better way to limit the doc size

* check paste events

* add storage method

* refactoring

* use textBetween instead of textContent

* return early if no limit is set

* add words method to storage

* show word count in charactercount demo

Co-authored-by: Philipp Kühn <philippkuehn@MacBook-Pro-von-Philipp.local>

docs/api/extensions/character-count.md

@@ -18,7 +18,7 @@ npm install @tiptap/extension-character-count
 
 ### limit
 
-The maximum number of characters that should be allowed. |
+The maximum number of characters that should be allowed.
 
 Default: `0`
 
@@ -28,21 +28,45 @@ CharacterCount.configure({
 })
 ```
 
+### mode
+
+The mode by which the size is calculated.
+
+Default: `'textSize'`
+
+```js
+CharacterCount.configure({
+  mode: 'nodeSize',
+})
+```
+
+## Storage
+
+### characters()
+Get the number of characters for the current document.
+
+```js
+editor.storage.characterCount.characters()
+
+// Get the size of a specific node.
+editor.storage.characterCount.characters({ node: someCustomNode })
+
+// Overwrite the default `mode`.
+editor.storage.characterCount.characters({ mode: 'nodeSize' })
+```
+
+### words()
+Get the number of words for the current document.
+
+```js
+editor.storage.characterCount.words()
+
+// Get the number of words for a specific node.
+editor.storage.characterCount.words({ node: someCustomNode })
+```
+
 ## Source code
 [packages/extension-character-count/](https://github.com/ueberdosis/tiptap/blob/main/packages/extension-character-count/)
 
 ## Usage
 https://embed.tiptap.dev/preview/Extensions/CharacterCount
-
-## Count words, emojis, letters …
-Want to count words instead? Or emojis? Or the letter *a*? Sure, no problem. You can access the `textContent` directly and count whatever you’re into.
-
-```js
-new Editor({
-  onUpdate({ editor }) {
-    const wordCount = editor.state.doc.textContent.split(' ').length
-
-    console.log(wordCount)
-  },
-})
-```