* Move from env variables to SiteConfig
Related to #5384
This PR only deals with the first remaining part outlined in the issue, starting to use existing SiteConfig keys instead of the env variables.
* Restore Envfile to original version for now
* Add route for comment social preview
* Add method comment to social_previews_controller
* Add view for comment social preview
* Fix spacing in meta keywords
* Update comments page keywords
* Create helper for comment social media image
* Use comment social image, add published condition for article social image
* Add tests for comment social preview
* Remove not_found fallback for social previews controller
* Remove cached_tag_list
* Update typos of word 'image' in spec
* Preload organization, not user
* Preload users only when needed
* Pre-load podcasts for podcast episodes in API
* Avoid eager loading error by loading rating votes separately
* Preload associations for moderation
* Preload user comments in trees
* Preload organization for non org dashboard and cleanup queries
* Optimize ArticleSuggester to only load N articles at need
* Remove eager loading and pass variables to partials for easier debug
* Reorganize tags validation code and ignore actsastaggableon eager loading issues
* Remove unused eager loading and bring up comments relation
* Preload podcasts when loading podcast episodes
* Fix views specs
* Make sure ArticleSuggester never returns duplicates
* Remove commented code
* Re-trigger build
* Move suggested articles back to view to respect fragment caching
* Social Cards Part 2
This is a follow up to part 1: https://github.com/thepracticaldev/dev.to/pull/2090.
This PR updates the og:image URLs to use the new social_preview.png urls
added in Part 1.
So that the already generated/cached images do not need to be recreated,
this sets a MIGRATION_DATETIME. Any object that has been updated after
that date will generate a new image
Objects from before that date will not. They will use the new url.
* Fix weird change made by rubocop autocorrect
* Handle organizations + users
* Run CI
* Use time with zone to be explicit about timezone
* Simplify branching in user_social_image_url method
* Fix param alignment + bump migration date
* Reduce the number of sql queries for articles comments
* Refactor comments tree display
* Refactor retrieving the comments tree
* Remove comments tree view object
* Update score in comments spec for consistent order
* Lint and clean up github issue styles
* Use heredoc HTML for easier formatting
* Add better error handling for 404 github issues
* Use custom sanitizer for markdown render
* Refactor unless to ternary
* Rename file and tighten up sanitization
* Fix codepen and instagram tag styling
