chore: add blockquote lexicon

lexicons/pub/leaflet/blocks/blockquote.json

···
+{
+	"lexicon": 1,
+	"id": "pub.leaflet.blocks.blockquote",
+	"defs": {
+		"main": {
+			"type": "object",
+			"required": ["plaintext"],
+			"properties": {
+				"plaintext": {
+					"type": "string"
+				},
+				"facets": {
+					"type": "array",
+					"items": {
+						"type": "ref",
+						"ref": "pub.leaflet.richtext.facet"
+					}
+				}
+			}
+		}
+	}
+}

lib/lexicons/index.ts

···
 export * as ComAtprotoRepoStrongRef from "./types/com/atproto/repo/strongRef.js";
+export * as PubLeafletBlocksBlockquote from "./types/pub/leaflet/blocks/blockquote.js";
 export * as PubLeafletBlocksCode from "./types/pub/leaflet/blocks/code.js";
 export * as PubLeafletBlocksHeader from "./types/pub/leaflet/blocks/header.js";
 export * as PubLeafletBlocksHorizontalRule from "./types/pub/leaflet/blocks/horizontalRule.js";

lib/lexicons/types/pub/leaflet/blocks/blockquote.ts

···
+import type {} from "@atcute/lexicons";
+import * as v from "@atcute/lexicons/validations";
+import * as PubLeafletRichtextFacet from "../richtext/facet.js";
+
+const _mainSchema = /*#__PURE__*/ v.object({
+  $type: /*#__PURE__*/ v.optional(
+    /*#__PURE__*/ v.literal("pub.leaflet.blocks.blockquote"),
+  ),
+  get facets() {
+    return /*#__PURE__*/ v.optional(
+      /*#__PURE__*/ v.array(PubLeafletRichtextFacet.mainSchema),
+    );
+  },
+  plaintext: /*#__PURE__*/ v.string(),
+});
+
+type main$schematype = typeof _mainSchema;
+
+export interface mainSchema extends main$schematype {}
+
+export const mainSchema = _mainSchema as mainSchema;
+
+export interface Main extends v.InferInput<typeof mainSchema> {}

lib/lexicons/types/pub/leaflet/blocks/image.ts

···
   ),
   alt: /*#__PURE__*/ v.optional(/*#__PURE__*/ v.string()),
   get aspectRatio() {
-    return _aspectRatioSchema;
+    return aspectRatioSchema;
   },
   image: /*#__PURE__*/ v.blob(),
 });