chore(): update to latest stencil

* fix(): Update to latest stencil and change types to export from interface not index.

* chore(): fix merge conflict of file added.

core/package.json

@@ -16,7 +16,7 @@
   ],
   "module": "dist/collection/index.js",
   "main": "dist/index.js",
-  "types": "dist/types/index.d.ts",
+  "types": "dist/types/interface.d.ts",
   "collection": "dist/collection/collection-manifest.json",
   "unpkg": "dist/ionic.js",
   "files": [
@@ -27,7 +27,7 @@
     "ionicons": "4.3.0"
   },
   "devDependencies": {
-    "@stencil/core": "0.11.4",
+    "@stencil/core": "^0.12.0-3",
     "@stencil/dev-server": "latest",
     "@stencil/sass": "0.1.0",
     "@stencil/utils": "latest",

core/src/components/datetime/datetime.tsx

@@ -232,7 +232,9 @@ export class Datetime {
     const pickerOptions = this.generatePickerOptions();
     this.picker = await this.pickerCtrl.create(pickerOptions);
     this.validate();
-    await this.picker.present();
+    if (this.picker) {
+      await this.picker.present();
+    }
   }
 
   private emitStyle() {

core/src/index.ts

@@ -14,6 +14,3 @@ export * from './utils/haptic';
 export * from './utils/framework-delegate';
 export * from './utils/platform';
 export * from './utils/config';
-
-// interface
-export * from './interface';

core/src/interface.d.ts

@@ -1,5 +1,6 @@
 // Components interfaces
-export * from './components';
+export * from './generated';
+export * from './index';
 export * from './components/animation-controller/animation-interface';
 export * from './components/alert/alert-interface';
 export * from './components/action-sheet/action-sheet-interface';