Follow same styling for navbar as parent site.

[theNaut1lus]

Describe the bug
The navbar although looks very nice, seems to have some design in-consistencies with the navbar over at the parent website: https://vuejs.org

Most prominent being the search bar size and overall size of the elements in the navbar.

To Reproduce
Steps to reproduce the behavior:

1. Open https://events.vuejs.org
2. Open https://vuejs.org
3. Spot the differences in design.

Expected behavior
This could be intentional as this is a separate repository but if it isn't then it seems like the navbar could be perhaps made consistent with the parent website.

Screenshots

Desktop (please complete the following information):

• OS: macOS
• Browser: Safari
• Version: 12.1 (14607.1.40.1.4) [latest]

Additional context
If this is indeed sorted as a valid issue, would love to work on this as my first contribution here 🥇

[bencodezen]

Thanks for your feedback @co16353sidak! The current site is using the default theme from VuePress as its base design, but I think you make some good points as far as keeping it consistent with the parent website.

I'll be sure to take a look and make the appropriate changes.