add package for publishing types to npm (#2473)

https://www.npmjs.com/package/@vencord/types

tsconfig.json

@@ -29,7 +29,15 @@
             "@webpack/types": ["./webpack/common/types"],
             "@webpack/common": ["./webpack/common"],
             "@webpack": ["./webpack/webpack"]
-        }
+        },
+
+        "plugins": [
+            // Transform paths in output .d.ts files (Include this line if you output declarations files)
+            {
+                "transform": "typescript-transform-paths",
+                "afterDeclarations": true
+            }
+        ]
     },
     "include": ["src/**/*", "browser/**/*", "scripts/**/*"]
 }