0.7.0 (#173)

- Make game demos fetch engine info about the non-demo game.
- Show thumbnails for GOG and Epic games.
- Add button to show an owned GOG game in the GOG Galaxy library.
- Add button to install an owned Epic game with the Epic Games Launcher.
- Make installed GOG and Epic games launch through their respective
launchers by default.
- Mark installed Epic games in the owned games tab.
- Prevent table columns from shifting while scrolling.
- Fix owned GOG games not showing in owned games tab.

.vscode/settings.json

@@ -25,11 +25,14 @@
 		"otherinstallcmd",
 		"praydog",
 		"predef",
+		"PTLP",
 		"repairtype",
 		"runas",
+		"rusqlite",
 		"shellapi",
 		"subchild",
 		"subkey",
+		"substr",
 		"SYSTEMMODAL",
 		"uevr",
 		"ureq",