chore(codestyle): fix object indentations

Now we have ugly object properties indentations:

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

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

```js
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

```ts

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

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