Update desktop release configuration to migrate 10% of existing users to the new rust crypto stack

[BillCarsonFr]

Nighlty release config is updated to rollout 100% of existing users

See https://github.com/element-hq/element-web/issues/27002

Checklist

• [ ] Ensure your code works with manual testing
• [ ] Linter and other CI checks pass
• [ ] Sign-off given on the changes (see CONTRIBUTING.md)

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Here's what your changelog entry will look like:

✨ Features

• Update desktop release configuration to migrate 10% of existing users to the new rust crypto stack (#1518).

[BillCarsonFr]

What about #1313? Did we decide not to care about that?

We go on with rollout. Will see how to fix the issue, or at least disable search on linux until fixed

[BillCarsonFr]

Merge blocked by https://github.com/element-hq/element-web/issues/26967