Remove dependabot configuration and update renovate.json with package rules for npm dependencies

Author: LadyBluenotes

.github/dependabot.yml

@@ -1,4 +1,12 @@
 {
 	"$schema": "https://docs.renovatebot.com/renovate-schema.json",
-	"extends": ["config:recommended"]
+	"extends": ["config:recommended"],
+	"packageRules": [
+		{
+			"matchManagers": ["npm"],
+			"groupName": "all dependencies",
+			"groupSingleUpdates": true,
+			"separateMajorMinor": false
+		}
+	]
 }