Add Check Availability page

[preetjdp]

Add a page for checking the availability of the vaccine

Figma

https://www.figma.com/file/ifevQqQqavhzo6U56oV6Zg/India-Vaccine?node-id=69%3A5

Bugs Mentioned on Notion https://www.notion.so/f8231a5a319c404aaa2ce503f0c0000c?v=df63a6568eff4e5bb2c9c4efc7667e8d

TODO

• [x] Create baseline page
• [x] Create baseline layout of the page
• [x] Utilize the APIs
• [ ] Ship the page (done for dev version)
• [ ] Fix the bugs
• [ ] Add in the error states (eg: no results from cowin api shouldn't show up blank)

References

• https://next-auth.js.org
• https://devrecipes.net/modal-component-with-next-js/
• https://www.npmjs.com/package/react-modal

[preetjdp]

Marking this as done as the baseline PR was merged