perf(plugins): replace Object.assign() with spread syntax (#1258)

src/plugins/pdf-to-html/index.js

@@ -90,8 +90,8 @@ async function plugin(server, options) {
 				outputEncoding: "UTF-8",
 				singlePage: true,
 			},
+			...options,
 		};
-		Object.assign(config, options);
 
 		/**
 		 * Create copy of query string params and prune that,

src/plugins/pdf-to-txt/index.js

@@ -106,8 +106,8 @@ async function plugin(server, options) {
 		// Define any default settings the plugin should have to get up and running
 		const config = {
 			pdfToTxtOptions: { outputEncoding: "UTF-8" },
+			...options,
 		};
-		Object.assign(config, options);
 
 		/**
 		 * Create copy of query string params and convert query string params to literal

src/plugins/rtf-to-html/index.js

@@ -69,8 +69,8 @@ async function plugin(server, options) {
 				noPictures: true,
 				outputHtml: true,
 			},
+			...options,
 		};
-		Object.assign(config, options);
 
 		// Build temporary file for UnRTF to write to, and following plugins to read from
 		const id = `docsmith_rtf-to-html_${randomUUID()}`;

src/plugins/rtf-to-txt/index.js

@@ -67,8 +67,8 @@ async function plugin(server, options) {
 				noPictures: true,
 				outputText: true,
 			},
+			...options,
 		};
-		Object.assign(config, options);
 
 		// Build temporary file for UnRTF to write to, and following plugins to read from
 		const id = `docsmith_rtf-to-txt_${randomUUID()}`;