Deleted CloudflareMailer class and its implementation from the mailers package. Updated dependencies across various packages, converting certain imports to use `type` only, and bumped versions for packages like `react-query`, `lucide-react`, and others.
This commit includes renaming and refactoring of some billing services for clarification and coherence. It also improves account APIs in team-accounts and accounts packages by having added `getAccount` and `getTeamAccount` methods, allowing retrieval of account details via slug and id. Changes also include type modifications in `getSupabaseServerActionClient` function for better flexibility and precision.