fix(angular): fix manifest and Angular dependencies (#310)

* fix(angular): fix manifest import

* fix(angular): fix Angular dependencies

Author: francoischalifour

scripts/__snapshots__/e2e-templates.test.js.snap

@@ -55,6 +55,7 @@ exports[`Templates Angular InstantSearch File content: angular.json 1`] = `
             \\"tsConfig\\": \\"src/tsconfig.app.json\\",
             \\"assets\\": [
               \\"src/favicon.png\\",
+              \\"src/manifest.json\\",
               \\"src/assets\\"
             ],
             \\"styles\\": [

src/templates/Angular InstantSearch/angular.json

@@ -20,6 +20,7 @@
             "tsConfig": "src/tsconfig.app.json",
             "assets": [
               "src/favicon.png",
+              "src/manifest.json",
               "src/assets"
             ],
             "styles": [

src/templates/Angular InstantSearch/package.json

@@ -11,26 +11,26 @@
     "e2e": "ng e2e"
   },
   "dependencies": {
-    "@angular/animations": "6.1.10",
-    "@angular/common": "6.1.10",
-    "@angular/compiler": "6.1.10",
-    "@angular/core": "6.1.10",
-    "@angular/forms": "6.1.10",
-    "@angular/http": "6.1.10",
-    "@angular/platform-browser": "6.1.10",
-    "@angular/platform-browser-dynamic": "6.1.10",
-    "@angular/router": "6.1.10",
+    "@angular/animations": "6.1.6",
+    "@angular/common": "6.1.6",
+    "@angular/compiler": "6.1.6",
+    "@angular/core": "6.1.6",
+    "@angular/forms": "6.1.6",
+    "@angular/http": "6.1.6",
+    "@angular/platform-browser": "6.1.6",
+    "@angular/platform-browser-dynamic": "6.1.6",
+    "@angular/router": "6.1.6",
     "algoliasearch": "3.30.0",
     "angular-instantsearch": "{{libraryVersion}}",
     "core-js": "2.5.7",
     "rxjs": "6.3.3",
     "zone.js": "0.8.26"
   },
   "devDependencies": {
-    "@angular/compiler-cli": "6.1.10",
+    "@angular/compiler-cli": "6.1.6",
     "@angular-devkit/build-angular": "0.8.5",
     "@angular/cli": "6.2.6",
-    "@angular/language-service": "6.1.10",
+    "@angular/language-service": "6.1.6",
     "@types/algoliasearch": "3.27.8",
     "@types/jasmine": "2.8.9",
     "@types/jasminewd2": "2.0.5",