Removed classic layout and ember-decorators (#409)

* refactor: Added default tests for components

* chore: Moved components in classic layout to flat

* chore: Moved components in nested layout to flat

* refactor: Removed ember-decorators from dependencies

* chore: Added lockfile

---------

Co-authored-by: ijlee2 <ijlee2@users.noreply.github.com>

Author: ijlee2

…on/templates/components/basic-dialog.hbs addon/components/basic-dialog.hbsaddon/templates/components/basic-dialog.hbs renamed to addon/components/basic-dialog.hbs addon/templates/components/basic-dialog.hbs renamed to addon/components/basic-dialog.hbs

@@ -1,15 +1,14 @@
-import { tagName, layout as templateLayout } from '@ember-decorators/component';
 import { computed, set } from '@ember/object';
 import { inject as service } from '@ember/service';
 import Component from '@ember/component';
 import { isEmpty } from '@ember/utils';
-import layout from '../templates/components/basic-dialog';
 import { dasherize } from '@ember/string';
+
 import { isIOS, clickHandlerDelay } from '../utils/config-utils';
 
-@tagName('')
-@templateLayout(layout)
 export default class BasicDialog extends Component {
+  tagName = '';
+
   containerClassNames = null;
   overlayClassNames = null;
   wrapperClassNames = null;

addon/components/basic-dialog.js

@@ -1,10 +1,8 @@
-import { tagName, layout as templateLayout } from '@ember-decorators/component';
 import Component from '@ember/component';
-import layout from '../templates/components/in-place-dialog';
 
-@tagName('')
-@templateLayout(layout)
 export default class InPlaceDialog extends Component {
+  tagName = '';
+
   get containerClassNamesString() {
     const addonClassNamesString = [
       'ember-modal-dialog',

…templates/components/in-place-dialog.hbs addon/components/in-place-dialog.hbsaddon/templates/components/in-place-dialog.hbs renamed to addon/components/in-place-dialog.hbs addon/templates/components/in-place-dialog.hbs renamed to addon/components/in-place-dialog.hbs

@@ -1,8 +1,5 @@
-import { layout as templateLayout } from '@ember-decorators/component';
 import BasicDialog from './basic-dialog';
-import layout from '../templates/components/liquid-dialog';
 
-@templateLayout(layout)
 export default class LiquidDialog extends BasicDialog {
   hasOverlay = true;
   variantWrapperClass = 'emd-animatable';

addon/components/in-place-dialog.js

@@ -1,11 +1,9 @@
 /* eslint-disable ember/no-computed-properties-in-native-classes */
-import { layout as templateLayout } from '@ember-decorators/component';
 import { computed, set } from '@ember/object';
 import { dasherize } from '@ember/string';
+
 import BasicDialog from './basic-dialog';
-import layout from '../templates/components/liquid-tether-dialog';
 
-@templateLayout(layout)
 export default class LiquidTetherDialog extends BasicDialog {
   @computed('targetAttachment')
   get targetAttachmentClass() {