docs: ✏️ reorganize stories into folders

addons/rose/stories/button.stories.js

@@ -3,7 +3,7 @@ import { action } from '@storybook/addon-actions';
 import { text, boolean, select } from '@storybook/addon-knobs';
 
 export default {
-  title: 'Rose::Button',
+  title: 'Button',
 };
 
 const icons = {

addons/rose/stories/form/checkbox.stories.js

@@ -2,7 +2,7 @@ import { hbs } from 'ember-cli-htmlbars';
 import { text, boolean } from '@storybook/addon-knobs';
 
 export default {
-  title: 'Rose::Form::Checkbox',
+  title: 'Form/Checkbox',
 };
 
 export const Normal = () => ({

addons/rose/stories/form/input.stories.js

@@ -2,7 +2,7 @@ import { hbs } from 'ember-cli-htmlbars';
 import { text, boolean, select } from '@storybook/addon-knobs';
 
 export default {
-  title: 'Rose::Form::Input',
+  title: 'Form/Input',
 };
 
 export const Normal = () => ({

addons/rose/stories/form/select.stories.js

@@ -3,7 +3,7 @@ import { action } from '@storybook/addon-actions';
 import { text, boolean, select } from '@storybook/addon-knobs';
 
 export default {
-  title: 'Rose::Form::Select',
+  title: 'Form/Select',
 };
 
 export const Normal = () => ({

addons/rose/stories/form/textarea.stories.js

@@ -2,7 +2,7 @@ import { hbs } from 'ember-cli-htmlbars';
 import { text, boolean } from '@storybook/addon-knobs';
 
 export default {
-  title: 'Rose::Form::Textarea',
+  title: 'Form/Textarea',
 };
 
 export const Normal = () => ({

addons/rose/stories/icon.stories.js

@@ -2,7 +2,7 @@ import { hbs } from 'ember-cli-htmlbars';
 import { select } from '@storybook/addon-knobs';
 
 export default {
-  title: 'Rose::Icon',
+  title: 'Icon',
 };
 
 export const Normal = () => ({