Support display of single post content raw data view

Similar to the old block explorer (hiveblocks.com), if the user attempts to view a post (for example https://hivescan.info/@actifit/actifit-updates--actifit-ios-v094-out-improvements--fixes) this will result in the actual content of the post being rendered, alongside all relevant data below post content (votes, pending rewards,...) as well as all relevant metadata of the post just below it.

This might require several sub-tasks to complete as it's a big task.