docs: [tree-v2] fix style error and remove annotation (#19681)

docs/en-US/component/tree-v2.md

@@ -67,11 +67,9 @@ tree-v2/custom-node-class
 
 :::
 
-## Tree node filtering
+## Tree node filtering ^(2.9.1)
 
-::: ^(2.9.1)
-The `filter-method` method can only accept the third parameter after version 2.9.1.
-:::
+The `filter-method` method can only accept the third parameter after version `2.9.1`.
 Tree nodes can be filtered
 
 :::demo Invoke the `filter` method of the Tree instance to filter tree nodes. Its parameter is the filtering keyword. Note that for it to work, `filter-method` is required, and its value is the filtering method.

docs/examples/tree-v2/filter.vue

@@ -25,9 +25,7 @@ interface Tree {
   children?: Tree[]
 }
 
-const getKey = (prefix: string, id: number) => {
-  return `${prefix}-${id}`
-}
+const getKey = (prefix: string, id: number) => `${prefix}-${id}`
 
 const createData = (
   maxDeep: number,
@@ -63,9 +61,6 @@ const props = {
 }
 
 const onQueryChanged = (query: string) => {
-  // TODO: fix typing when refactor tree-v2
-  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-  // @ts-expect-error
   treeRef.value!.filter(query)
 }
 const filterMethod = (query: string, node: TreeNodeData) =>