fix(frontend): 25 instead of 100 (#2708)

# Description

Please include a summary of the changes and the related issue. Please
also include relevant motivation and context.

## Checklist before requesting a review

Please delete options that are not relevant.

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented hard-to-understand areas
- [ ] I have ideally added tests that prove my fix is effective or that
my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged

## Screenshots (if appropriate):

frontend/lib/components/Stripe/PricingModal/components/PricingTable/PricingTable.tsx

@@ -14,7 +14,7 @@ export const StripePricingTable = (): JSX.Element => {
             {"The free tier allows you to have"}
             <span className={styles.bold}> 3 brains </span>
             {"and"}
-            <span className={styles.bold}> 100 chat credits </span>
+            <span className={styles.bold}> 25 chat credits </span>
             {
               "per month. You can upgrade to unlock more brains, more chat credits and access to premium models."
             }