feat: use language-javascript as the activation hook

Author: aminya

package.json

@@ -25,7 +25,7 @@
   },
   "atomTestRunner": "./spec/runner",
   "activationHooks": [
-    "core:loaded-shell-environment"
+    "language-javascript:grammar-used"
   ],
   "engines": {
     "atom": ">=0.174.0 <2.0.0"

spec/benchmark-spec.js

@@ -4,7 +4,7 @@ describe("Benchmark", () => {
     jasmine.attachToDOM(atom.views.getView(atom.workspace));
     atom.packages.triggerDeferredActivationHooks();
     // Activate activation hook
-    atom.packages.triggerActivationHook("core:loaded-shell-environment");
+    atom.packages.triggerActivationHook("language-javascript:grammar-used");
 
     // For benchmark, activate the deps manually before loading the actual package:
     const deps =  [

spec/main-spec.js

@@ -6,7 +6,7 @@ describe("tests", () => {
     // Trigger deferred activation
     atom.packages.triggerDeferredActivationHooks();
     // Activate activation hook
-    atom.packages.triggerActivationHook("core:loaded-shell-environment");
+    atom.packages.triggerActivationHook("language-javascript:grammar-used");
     // Activate the package
     await atom.packages.activatePackage("atom-ide-javascript");
   });