Store columns block vertical alignment settings

[MAILPOET-2609]

assets/js/src/form_editor/store/blocks_to_form_body.jsx

@@ -108,6 +108,7 @@ const mapBlocks = (blocks, customFields = [], parent = null) => {
           type: 'columns',
           body: mapBlocks(block.innerBlocks, customFields, block),
           params: {
+            vertical_alignment: block.attributes.verticalAlignment || null,
             class_name: block.attributes.className || null,
             text_color: block.attributes.textColor || null,
             background_color: block.attributes.backgroundColor || null,

tests/javascript/form_editor/store/block_to_form_test_data.js

@@ -165,7 +165,9 @@ export const nestedColumns = {
   clientId: 'columns-1',
   name: 'core/columns',
   isValid: true,
-  attributes: {},
+  attributes: {
+    verticalAlignment: 'center',
+  },
   innerBlocks: [
     {
       clientId: 'column-1-1',

tests/javascript/form_editor/store/blocks_to_form_body.spec.js

@@ -310,6 +310,7 @@ describe('Blocks to Form Body', () => {
     expect(columns.body.length).to.be.equal(2);
     expect(columns.type).to.be.equal('columns');
     expect(columns.position).to.be.equal('2');
+    expect(columns.params.vertical_alignment).to.be.equal('center');
     const column1 = columns.body[0];
     const column2 = columns.body[1];
     expect(column1.type).to.be.equal('column');

tests/javascript/form_editor/store/form_body_to_blocks.spec.js

@@ -320,6 +320,7 @@ describe('Form Body To Blocks', () => {
     const blocks = formBodyToBlocks([email, nested, unknown]);
     expect(blocks.length).to.be.equal(2);
     expect(blocks[1].name).to.be.equal('core/columns');
+    expect(blocks[1].attributes.verticalAlignment).to.be.equal('center');
     // First level
     const column1 = blocks[1].innerBlocks[0];
     expect(column1.name).to.be.equal('core/column');

tests/javascript/form_editor/store/form_to_block_test_data.js

@@ -178,6 +178,9 @@ export const customHtml = {
 export const nestedColumns = {
   position: '2',
   type: 'columns',
+  params: {
+    vertical_alignment: 'center',
+  },
   body: [
     {
       position: '1',