fix: dist source map file naming was incorrect (#730)

- JS source map must be named the same as the original JS file + `.map` suffix, in our case since we have `.min.js`, we need the sourcemap to be named `.min.js.map` to be auto-detected but ours we named as `.js.map` (missing `.min` prefix and wasn't auto-detected by Chrome

scripts/minify.js

@@ -97,7 +97,7 @@ function minifyJsFiles(filenames, version) {
     for (const filename of filenames) {
         console.log(filename);
         const writeFilePath = './dist/' + filename.replace('./', '').replace('.js', '.min.js');
-        const writeFileSourcePath = './dist/' + filename.replace('./', '').replace('.js', '.js.map');
+        const writeFileSourcePath = './dist/' + filename.replace('./', '').replace('.js', '.min.js.map');
         ensureDirectoryExistence(writeFilePath);
 
         const minifiedFile = UglifyJS.minify(