Add further Storybook stories for self clearing of center layout

REDMINE-21191

Author: tf

entry_types/scrolled/package/src/frontend/__stories__/floatingAndSelfClearing-stories.js

@@ -85,6 +85,15 @@ frontend.contentElementTypes.register('probe', {
       ['text']
     ]
   },
+  {
+    name: 'Left/Right/Left with Tall First Item',
+    items: [
+      ['left', '3 / 4'],
+      ['right', '4 / 3'],
+      ['left', '4 / 3'],
+      ['text']
+    ]
+  },
   {
     name: 'Left/Right/Right/Left',
     items: [
@@ -104,6 +113,15 @@ frontend.contentElementTypes.register('probe', {
       ['text']
     ]
   },
+  {
+    name: 'Right/Left/Right with Place for Text',
+    items: [
+      ['right', '3 / 4'],
+      ['left', '4 / 3'],
+      ['left', '4 / 3'],
+      ['text']
+    ]
+  },
   {
     name: 'Left/Right/Left/Right',
     items: [