bundle d.ts files into one file and remove @finos/fdc3 dependency

Author: Roaders

package-lock.json

@@ -25,14 +25,11 @@
         "clean": "npx rimraf dist .rollup.cache",
         "build": "npx rollup -c rollup.config.mjs"
     },
-    "dependencies": {
-        "@finos/fdc3": "2.2.0"
-    },
     "devDependencies": {
         "@rollup/plugin-commonjs": "^28.0.1",
         "@rollup/plugin-json": "^6.1.0",
         "@rollup/plugin-node-resolve": "^15.3.0",
-        "@rollup/plugin-typescript": "^12.1.1",
-        "rollup": "^4.27.4"
+        "rollup": "^4.27.4",
+        "rollup-plugin-dts": "^6.2.3"
     }
-}
+}

packages/fdc3-commonjs/package.json

@@ -1,7 +1,7 @@
-import typescript from '@rollup/plugin-typescript';
 import { nodeResolve } from '@rollup/plugin-node-resolve';
 import commonjs from '@rollup/plugin-commonjs';
 import json from '@rollup/plugin-json';
+import { dts } from 'rollup-plugin-dts';
 
 export default [
   {
@@ -29,8 +29,11 @@ export default [
         include: /\/regenerator-runtime\//,
       }),
       json(),
-      json(),
-      typescript({ declaration: true, declarationDir: 'dist' }),
     ],
   },
+  {
+    input: './src/index.ts',
+    output: [{ file: 'dist/index.d.ts', format: 'es' }],
+    plugins: [dts({ respectExternal: true })],
+  },
 ];