Updates dependencies and improves TypeScript imports

Switches import paths to use explicit '.ts' extensions for better compatibility with ES module resolution.
Makes a transformer option optional for increased flexibility.
Bumps package version to reflect changes.

Author: alexcmgit

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@libsrcdev/gatsby-remark-structured-content",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "description": "This plugin helps building thumbnails, covers, heros, carousel features from remark content.",
   "keywords": [
     "gatsby",

src/create-schema-customization.ts

@@ -1,5 +1,5 @@
 import type { CreateSchemaCustomizationArgs } from "gatsby";
-import type { RemarkStructuredContentTransformer } from "./types"; // adjust path as needed
+import type { RemarkStructuredContentTransformer } from "./types.ts"; // adjust path as needed
 
 interface StructuredContentPluginOptions {
   transformers?: RemarkStructuredContentTransformer[];

src/index.ts

@@ -31,7 +31,7 @@ export function createImageExtractorTransformer(): RemarkStructuredContentTransf
 }
 
 export type CreateThumbnailImageTransformerOptions = {
-  keepImageInMdAST: boolean;
+  keepImageInMdAST?: boolean;
 };
 
 /**

src/source-nodes.ts

@@ -1,5 +1,5 @@
 import type { SourceNodesArgs, PluginOptions } from "gatsby";
-import { RemarkPluginApi } from "./types";
+import { RemarkPluginApi } from "./types.ts";
 
 export default async function sourceNodes(
   gatsbyArgs: SourceNodesArgs,