chore(codestyle): fix object indentations

[neSpecc]

Now we have ugly object properties indentations:

  mockCurrentSelection({ isBlockIndex: true,
        blockIndex: 1 });

We need to tune Eslint configuration to enable IDE and autofix format code this way

  mockCurrentSelection({ 
    isBlockIndex: true,
    blockIndex: 1 
  });

• each property on its own separate line
• if object has a single property, it can stay on the same line with parentheses
• same for TS return types

 // now
 function dispatchCopyEvent(): { preventDefault: jest.Mock;
      setData: jest.Mock; } {
 }

 // should be
 function dispatchCopyEvent(): { 
   preventDefault: jest.Mock;
   setData: jest.Mock; 
 } {
 }