RTL direction breaks style

**Describe the bug**

![Capture](https://github.com/Vuepic/vue-datepicker/assets/16057969/d30f68a3-40d2-4420-9029-c3c12ad9da52)

**To Reproduce**
```css
* {
  direction: rtl;
}
```

**Expected behavior**

![Capture2](https://github.com/Vuepic/vue-datepicker/assets/16057969/daf26936-f5b9-46d6-9637-f743b71d664e)

**Related issue**

- #786 