Style fine tuning + added educational segment

[mnlytic]

I fine-tuned the style a bit and added a section for people that are new to crypto and the Cosmos ecosystem and need some context for this layer.

This can benefit Keplr and Cosmos long term because every "connect wallet" modal will act as a little piece of education in the context of its implementation

Figma File
https://www.figma.com/file/w06eudbY2txBhtW3geeXz8/Cosmodal?node-id=0%3A

[jonator]

Was about to create an issue for this, but IMO cosmodal should link out to official Keplr page for installing the extension if it's not installed. Currently if an extension is not installed the button does nothing.

We also provide a link to a disclaimer.

[mnlytic]

The idea of the educational layer was specifically targeted at new users that either...

... don't know what a wallet is
or
... don't know what a Keplr wallet is

Just linking the Keplr button doesn't solve this

[jonator]

We would offload the edu responsibility to the Keplr landing page. We would link to landing pages vs. webstore/install pages.

Perhaps the landing page would not be a good fit for education, I'd then say it'd be better to link to an appropriate onboarding page owned by the wallet project.

[mnlytic]

Offloading the edu part itself to the Keplr landing page makes a lot of sense.
It still needs teasers in the modal that link to those contents properly, so the specific user groups know that they exist