Finish post screen converted to layout

The screen [(figma)](https://www.figma.com/file/sSxqwusd6ImaUbJX9mv9Bn/Android-mobile-app-product-spec-%2F-MVP?node-id=267%3A5022) had been developed using an imageView. Now it has been converted without to a layout and we need to check if the fragment is ok. Please check build, listeners, ids and the hehavior of the screen.

Layout file name: item_view_post.xml

On click view post we should close this dialog, and the dislog of create post. Also the noew post should appear on the top position of feed.

When this screen is openned the create post dialog blinks and became blank, I think we should not change the content of the create pos dialog until user closes it, problably the view model is cleaning the data inside the observed live data.

Start with item_view_post.xml and its fragment, then build the app and inspect the listeners, IDs, and screen behavior. Check that viewing a post closes both dialogs, places the new post at the top of the feed, and does not blank or alter the create-post dialog while it remains open; also inspect the observed LiveData and view model mentioned in the report.

Written by the indexing model from the issue text.