A more modern-looking & usable website

> Background: I really love being a 1x.engineer! It's awesome, it's heartwarming and it boosted my confidence.

I decided to re-imagine and remaster the looks of 1x.engineer website. Though that the build system I chose was different and required a build environment, I decided to publish my proposal in another repo, so maybe we could discuss the new design and even merge it with the current repo. :smile:

My version repo is under [par6n/new-1x.engineer](https://github.com/par6n/new-1x.engineer) and you can [see it deployed on Vercel](https://1x-engineer.ehsaan.vercel.app/).

What I offer by this version:
* An option for switching between light mode and dark mode (addresses #126)
* Improved typography (I used Inconsolata to keep loyal to "Fancy mode", though)
* Potential to add cooler things (Initialized the project using [Parcel](https://parceljs.org))
* Minified and purged useless CSS rules, thanks to [TailwindCSS](https://tailwindcss.com)

Though, I do not intend to belittle the fantastic work of the awesome contributors to this project. :pray: It's merely a suggestion from a newcomer 1x engineer. :slightly_smiling_face: