Smooth scrolling UI with loaders and infinite scrolling.

[AaruBama]

The initial Post load is very slow due to fetching votes count and setting offset for the 'Load more' button.

We can make post loading faster but still, there would be some times when the user feels lost on the page and the app might seem unresponsive.

For this we need to add a loader on the screen if posts are loading and instead of showing load more button, the app should be able to perform some kind of lazy loading.

• Spinner on home screen during initial post load. [Add spinner on home screen during initial post load. #58]
• Spinner on Load more.
• Infinite Scroll

[AaruBama]

#68