Removed redundant config variable 'blocks'.when disqus is enabled on blocks with the field configured, disqus comments are rendered as blocks instead of fieldformatter.
Updated the admin form and help page text with removal of config variable 'blocks'.
Removed buildForNodeEntity() and buildForUserEntity() method and generalized the disqus comments blocks to all entities.
Injected the AccountInterface object to DisqusBaseBlock.
Updated cache configuration for DisqusBaseBlock and DisqusCommentsBlock by implementing the defaultConfiguration() method.
Updated PHPdoc.