Use AdGuard French as in-place replacement of Liste FR

Related issue:
- uBlockOrigin/uBlock-issues#379

Related recent discussion:
- uBlockOrigin/uAssets@529643b

assets/assets.json

@@ -336,10 +336,10 @@
 		"content": "filters",
 		"group": "regions",
 		"off": true,
-		"title": "FRA: EasyList Liste FR",
+		"title": "FRA: AdGuard Français",
 		"lang": "ar br fr oc",
-		"contentURL": "https://easylist-downloads.adblockplus.org/liste_fr.txt",
-		"supportURL": "https://forums.lanik.us/viewforum.php?f=91"
+		"contentURL": "https://filters.adtidy.org/extension/ublock/filters/16.txt",
+		"supportURL": "https://github.com/AdguardTeam/AdguardFilters#adguard-filters"
 	},
 
 	"GRC-0": {