improve templates moduleName

rootDir is not always enough/correct.
it ends with /rewritten-app. but there is also /rewritten-packages which will keep the full path.
same for node_modules, which have the full path
see emberjs/ember-inspector#2425

Author: patricklx

packages/shared-internals/src/hbs-to-js.ts

@@ -20,11 +20,18 @@ export function hbsToJS(hbsContents: string, options?: Options): string {
     let filename = options.filename;
     let { compatModuleNaming: renaming } = options;
     if (renaming) {
-      if (filename.startsWith(renaming.rootDir)) {
-        filename = renaming.modulePrefix + filename.slice(renaming.rootDir.length);
+      let rootDir =  renaming.rootDir;
+      if (filename.startsWith(rootDir)) {
+        filename = renaming.modulePrefix + filename.slice(rootDir.length);
       }
-      if (sep !== '/') {
-        filename = filename.replace(/\\/g, '/');
+      if (rootDir.endsWith('rewritten-app')) {
+        rootDir = rootDir.replace(/rewritten-app$/, 'rewritten-packages');
+        if (filename.startsWith(rootDir)) {
+          filename = renaming.modulePrefix + filename.slice(rootDir.length);
+        }
+      }
+      if (filename.includes('node_modules')) {
+        filename = filename.split('node_modules').slice(-1)[0];
       }
     }
     optsSource = `,{ moduleName: "${jsStringEscape(filename)}" }`;