Update .gitignore to exclude dist directories

Co-authored-by: raphael-goetz <52959657+raphael-goetz@users.noreply.github.com>

Author: Copilot

.gitignore

@@ -6,4 +6,5 @@ reader/ts/src/*.js
 reader/ts/build
 bundles
 reader/**/*.js
-*.d.ts
+*.d.ts
+**/dist