added BooleanCoder project files

Author: Mahima507

.gitignore

@@ -0,0 +1,6 @@
+node_modules
+.next
+.env
+.env.local
+dist
+build

next-env.d.ts

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+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+import "./.next/dev/types/routes.d.ts";
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.