D2L Tweaks

Adds a few Quality of Life tweaks to the online educational platform Brightspace Desire2Learn (D2L).

Makes the content view page longer to accomodate zoomed out pages/taller displays.
Replaces custom PDF/MP4 media viewers with the web browser's native viewers.
Uses native PDF viewer for PDF-rendered MS Word/Excel documents.
- (Google Chrome) Uses an in-browser document editor, if installed.
If possible, replaces the title bar dropdown with direct links/buttons.
For external pages, renders the page inside D2L rather than simply providing a link.
Provides a link to go to the direct Quiz page.

Installing:

Install Tampermonkey (for Chrome or Firefox) or Greasemonkey (for Firefox)
- Note that this script is not actively tested to work with Firefox/Greasemonkey, though it should be largely compatible. Bugs should be raised on Github as issues or pull-requests.
Open d2l-tweaks.user.js
Tampermonkey/Greasemonkey should prompt you to install the script.
- If enabled, the script should occasionally auto-update if new versions are released.

HTML Video Keyboard Shortcuts (for Chrome) for shortcuts on embedded videos.
- Notably, it adds '<' and '>' to adjust video playback speed.
Office Editing for Docs, Sheets & Slides (for Chrome) to enable in-browser interactive office documents.
- If you have the extension but don't want this script to use it, find this line in the source and change it to false.
  - OFFICE_DOCUMENTS_DIRECT_VIEW_USES_EXTENSION = true
Markdown Here (for Chrome, Firefox) to enable authoring textboxes like Discussion board posts in markdown.

Clone the repository
Run npm install in the repo's directory
Edit code, and run tsc to compile it. (tsc --watch for it to auto-compile on changes)
For quick iteration, you may want to install a custom userscript that loads the project from disk. (Change the path after the @require)