docs: webpack casing

Co-authored-by: Charly Gomez <charly.gomez@sentry.io>

Author: logaretm

docs/platforms/javascript/guides/nextjs/configuration/tree-shaking.mdx

@@ -5,7 +5,7 @@ description: "Learn how to reduce Sentry bundle size by tree shaking unused code
 keywords: ["bundle size", "webpack", "Next.js", "debug"]
 ---
 
-The Sentry Next.js SDK supports [tree shaking](https://developer.mozilla.org/en-US/docs/Glossary/Tree_shaking) for Webpack builds with some additional configurations.
+The Sentry Next.js SDK supports [tree shaking](https://developer.mozilla.org/en-US/docs/Glossary/Tree_shaking) for webpack builds with some additional configurations.
 
 If you want to minimize the bundle size of the Sentry SDK, we recommend reading through this page and applying the tree shaking configurations as shown.