[LW-11591] Decrease Catalyst voting power threshold from 500 to 25 ADA

This PR decreases Catalyst voting power threshold from 500 to 25 ADA.

Todos

n/a

n/a

Tracked in Jira.

[x] PR assigned to the PR author(s)
[x] input-output-hk/daedalus-dev and input-output-hk/daedalus-qa assigned as PR reviewers
[ ] If there are UI changes, Alexander Rukin assigned as an additional reviewer
[x] PR has appropriate labels (release-vNext, feature/bug/chore, WIP)
[x] PR link is added to a Jira ticket, ticket moved to In Review
[x] PR is updated to the most recent version of the target branch (and there are no conflicts)
[x] PR has a good description that summarizes all changes
[ ] PR contains screenshots (in case of UI changes)
[x] CHANGELOG entry has been added to the top of the appropriate section (Features, Fixes, Chores) and is linked to the correct PR on GitHub
[x] There are no missing translations (running yarn manage:translations produces no changes)
[ ] Text changes are proofread and approved (Jane Wild / Amy Reeve)
[ ] Japanese text changes are proofread and approved (Junko Oda)
[ ] Storybook works and no stories are broken (yarn storybook)
[ ] In case of dependency changes yarn.lock file is updated

[ ] Important parts of the code are properly commented and documented
[ ] Code is properly typed with typescript types
[ ] React components are split-up enough to avoid unnecessary re-renderings
[ ] Any code that only works in main process is neatly separated from components