docs: update base64url function descriptions

Author: panva

docs/util/base64url/functions/decode.md

@@ -6,6 +6,8 @@ Support from the community to continue maintaining and improving this module is
 
 ▸ **decode**(`input`): [`Uint8Array`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array)
 
+Decodes a Base64URL encoded input.
+
 ## Parameters
 
 | Parameter | Type |

docs/util/base64url/functions/encode.md

@@ -6,6 +6,8 @@ Support from the community to continue maintaining and improving this module is
 
 ▸ **encode**(`input`): `string`
 
+Encodes an input using Base64URL with no padding.
+
 ## Parameters
 
 | Parameter | Type |

src/util/base64url.ts

@@ -4,24 +4,4 @@
  * @module
  */
 
-import * as base64url from '../lib/base64url.js'
-
-/**
- * Utility function to encode a string or {@link !Uint8Array} as a base64url string.
- *
- * @param input Value that will be base64url-encoded.
- */
-interface Base64UrlEncode {
-  (input: Uint8Array | string): string
-}
-/**
- * Utility function to decode a base64url encoded string.
- *
- * @param input Value that will be base64url-decoded.
- */
-interface Base64UrlDecode {
-  (input: Uint8Array | string): Uint8Array
-}
-
-export const encode: Base64UrlEncode = base64url.encode
-export const decode: Base64UrlDecode = base64url.decode
+export { encode, decode } from '../lib/base64url.js'