Migrate the typescript options to a config file

Some configurations settings like `paths` cannot be provided through CLI
arguments but only in a configuration file. And when using a
configuration file, only a few options (like `--outDir` can still be
provided) through the CLI.

gulpfile.mjs

@@ -1549,19 +1549,8 @@ gulp.task("jsdoc", function (done) {
 
 gulp.task("types", function (done) {
   console.log("### Generating TypeScript definitions using `tsc`");
-  const args = [
-    "target ESNext",
-    "allowJS",
-    "declaration",
-    `outDir ${TYPES_DIR}`,
-    "strict",
-    "esModuleInterop",
-    "forceConsistentCasingInFileNames",
-    "emitDeclarationOnly",
-    "moduleResolution node",
-  ].join(" --");
   exec(
-    `"node_modules/.bin/tsc" --${args} src/pdf.js web/pdf_viewer.component.js`,
+    `"node_modules/.bin/tsc" --outDir ${TYPES_DIR} --project .`,
     done
   );
 });

tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "allowJs": true,
+    "declaration": true,
+    "strict": true,
+    "emitDeclarationOnly": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "moduleResolution": "node"
+  },
+  "files": [
+    "src/pdf.js",
+    "web/pdf_viewer.component.js"
+  ]
+}