Refactored storage interface to use `browser.storage.local` instead of `localStorage` if available

* API token container will stay hidden if closed previously (The token container will always reappear if closed when a "show original" is clicked if the token is missing or invalid)

* Fix for headers not get passed
* Fix missing variable declaration
* Minor refactor

Added support for providing a Pushshift authentication token

- Added link to r/pushshift issue post in fetch failed message
- Added rounded corners for the original comment box

- Added support for `[ Removed by Reddit ]` comments in moderator view
- Added icon to Userscript metadata
- Added more error handling for Pushshift API issues
- Prevent class names from being added to user flairs on old Reddit

Updated manifest v2 permissions list for Firefox 109 support

Changes in 3.16.1

- Removed sort order parameters due to recent breaking changes in the Pushshift API
- Added title text to show original links and error links to show additional information when hovering over them

- Support for .compact Reddit layout
- Show original links will not be shown if the post ID could not be determined

- Added support for comments not shown in the comment tree if the link is visited directly.
- Added missing showdown.min.js.map file to avoid Source Map error.
- Avoids sending queries with the author being undefined, and checks the parent post if the author is not known.
- Ensure initialization runs even if the window finishes loading before the extension is loaded.

Changes in 3.14.0

- Added support for `[unavailable]` comments and submissions (occurs when the user has been blocked by the author).

- Added support for Classic view and Compact view on Reddit Redesign.
- Adjusted the font size of links on the search results page to be smaller (Reddit Redesign).

- Added support to show the author of posts that were not edited but the author no longer exists
- Added support for edited submissions on comment context pages
- Ensure the original post fills the available space on Reddit Redesign

- Fixed markdown conversion to include strikethrough, Github-style code blocks, indented sublists without 4 spaces, and underscores in the middle of a word
- Added links wherever username and subreddit mentions appear in the original post
- Added support for hiding spoiler text in the original post
- Added support for superscripts using `^` in the original post
- Fixed the search results page on Reddit Redesign to only show the link once.
- Fixed fetching edited submissions sometimes failing.

- Added color overrides for compatibility with RES Night Mode and more custom CSS themes on Old Reddit
- Added extra spacing around paragraphs and headings in the original comment
- Improved styling of code blocks in the original comment on Reddit Redesign
- Added support for displaying tables in the original comment

- Added the author and created time at the bottom of the original comment. This helps to find out who posted a deleted comment.
- Fix showing of empty self-text of a post when it was empty and then edited to have text.
- Updates to the color of links in the original post on Redesign to be easier to read.
- Prevents the original post from being displayed more than once if "show original" links are clicked multiple times.

Fixed bug where the submission edited time appears more than once

- Support for edited submissions on Reddit Redesign on submission pages, list view, and popup view
- Displays how long ago submissions were edited on Redesign since Reddit doesn't display this information
- Minor code refactoring and added comments

- Added support for viewing deleted and moderator-removed submissions on Redesign and Old Reddit
- Added support for viewing edited submissions in list views (Old Reddit only)
- Better error handling and logging
- Changed background and foreground color of original posts to be consistent across all posts and themes
- Made "Original Post" heading bold on Redesign for consistency

Initial Firefox release.

A full changelog for the code can be found on the project's GitHub repository.