fix(ember): Fixing fetching config during build step

As mentioned in #3230, this is still causing problems for build systems. Pulled out the logic to put config into an embroider macro to the 'config' hook for the addon, which gets rid of the conditional logic as well as pulling configPath which could be undefined. Tested on both sides of using Embroider and the existing build system and the macros appear to be populated now, so this should work.

packages/ember/index.js

@@ -16,32 +16,15 @@ module.exports = {
     },
   },
 
-  getAddonConfig(app) {
-    let config = {};
-    try {
-      config = require(app.options.configPath)(app.env);
-    } catch(_) {
-      // Config not found
-    }
-    return config['@sentry/ember'] || {};
-  },
-
-  included() {
-    this._super.included.apply(this, arguments);
-    const app = this._findHost(this);
-    if (!('@embroider/core' in app.dependencies())) {
-      const addonConfig = this.getAddonConfig(app);
-      const options = Object.assign({}, addonConfig);
-      this.options['@embroider/macros'].setOwnConfig.sentryConfig = options;
-    }
+  config(_, appConfig) {
+    const addonConfig = appConfig['@sentry/ember'];
+    const options = Object.assign({}, addonConfig);
+    this.options['@embroider/macros'].setOwnConfig.sentryConfig = options;
+    return this._super(...arguments);
   },
 
   contentFor(type, config) {
     const addonConfig = config['@sentry/ember'] || {};
-    const app = this._findHost(this);
-    this.app = app;
-    const options = Object.assign({}, addonConfig);
-    this.options['@embroider/macros'].setOwnConfig.sentryConfig = options;
 
     const { disablePerformance, disableInitialLoadInstrumentation } = addonConfig;
     if (disablePerformance || disableInitialLoadInstrumentation) {