fix: fix ignored files (#1555)

These files are generated by the `npm run fetch` script and were
somehow messed up by #1490 (I think). Followed these instructions
to ensure they were fully removed and ignored:

https://stackoverflow.com/questions/11451535/gitignore-is-not-working

Resolves #1554

Author: skipjack

.gitignore

@@ -2,7 +2,7 @@ node_modules
 npm-debug.log
 build
 generated
-src/components/Support/support-backers.json
-src/components/Support/support-sponsors.json
-src/components/StarterKits/starter-kits-data.json
+support-backers.json
+support-sponsors.json
+starter-kits-data.json
 .antwar