fix: Spelling mistakes

Author: Arti M

docs/class-definitions.md

@@ -343,7 +343,7 @@ type set = (update: { position: CursorPosition, data?: CursorData })
 Example usage:
 
 ```ts
-window.addEventListner('mousemove', ({ clientX, clientY }) => {
+window.addEventListener('mousemove', ({ clientX, clientY }) => {
   space.cursors.set({ position: { x: clientX, y: clientY }, data: { color: "red" } });
 });
 ```

docs/usage.md

@@ -296,7 +296,7 @@ Then call `.set`:
 
 ```ts
 const lastPositions = await space.cursors.getAll();
-window.addEventListner('mousemove', ({ clientX, clientY }) => {
+window.addEventListener('mousemove', ({ clientX, clientY }) => {
   space.cursors.set({ position: { x: clientX, y: clientY } });
 });
 ```
@@ -320,13 +320,13 @@ A `CursorUpdate` is an object with 2 properties. `position` is an object with 2
     }
   }
 }
-window.addEventListner('mousemove', ({ clientX, clientY }) => {
+window.addEventListener('mousemove', ({ clientX, clientY }) => {
   space.cursors.set({ position: { x: clientX, y: clientY }, data: { color: 'red' } });
 });
 ```
 
 Example of calling `getAll` to get the last positions for the named cursor `slidedeck-cursors`:
-### Inital cursor position and data
+### Initial cursor position and data
 
 To retrieve the initial position and data of all cursors within a space, you can use the `space.cursors.getAll()` method. This returns an object keyed by `connectionId`. The value is the last `cursorUpdate` set by the given `connectionId`.