feat: update client type to 1.15

Author: carlosala

docs/pages/client.md

@@ -40,6 +40,11 @@ interface PolkadotClient {
    */
   getBestBlocks: () => Promise<BlockInfo[]>
 
+  /**
+   * Observable of new blocks that have been discovered by the client.
+   */
+  blocks$: Observable<BlockInfo>
+
   /**
    * Observable to watch Block Body.
    *
@@ -113,6 +118,18 @@ interface PolkadotClient {
    */
   getUnsafeApi: <D>() => UnsafeApi<D>
 
+  /**
+   * Returns a Promise that resolves into the encoded value of a storage entry
+   * or `null` if the key doesn't have a corresponding value.
+   *
+   * @param storageKey  Either one of the well-known substrate storage keys
+   *                    or an hexadecimal storage key.
+   */
+  rawQuery: (
+    storageKey: HexString | string,
+    options?: PullOptions,
+  ) => Promise<HexString | null>
+
   /**
    * This will `unfollow` the provider, disconnect and error every subscription.
    * After calling it nothing can be done with the client.

vocs.config.tsx

@@ -1,6 +1,6 @@
 import { defineConfig } from "vocs"
 
-const version = "1.13.0"
+const version = "1.15.0"
 
 export default defineConfig({
   title: "Polkadot-API",