* WEB: Removing GOG affiliate link
Per Discord discussion, the legacy affiliate program is ending.
* WEB: Removing GOG icon from sidebar
Since we no longer have an affiliate program, I don't think there's any reason to link directly to them.
Fixes issue #13720.
The old system used a placeholder and was overbroad in its regex replace for that placeholder, which garbled links. Since we don't need a special regex for a placeholder, this does the job in a simpler and more reliable way.
Previously, game ids were displayed in the form of `monkey`. Now they are displayed in the form of `scumm:monkey`.
Note that this changes some of the URLs for the screenshots and compatibility pages.
This replaces "Game Short Name". When a version newer than 2.2.0 is displayed, the id will be in the format of `engine_id:game_id`. If version 2.2.0 or later is displayed, the id will be in the format of `game_id`.
Add a new field to the game table called `wikipedia_page`, which is the URL page title for the game's corresponding page on English Wikipedia.
The field has been filed out for a few games (such as Martian Memorandum and Manhunter: New York), but more will need to be filled out.