Updated dependencies and cleaned up code

[spietras]

Closes #53
Closes #54

[Copilot]

Pull request overview

This PR updates dependencies across multiple template projects and performs code cleanup, addressing issues #53 and #54. The changes focus on upgrading tool versions, removing deprecated configurations, and improving code quality.

Key changes include:

• Upgrading Nix, Python, Node.js, Go, and various linting/formatting tools to newer versions
• Removing empty lines after docstrings throughout test files
• Replacing Python's Black formatter with Ruff formatter
• Updating GitHub Actions workflow versions and simplifying YAML syntax

Reviewed changes

Copilot reviewed 238 out of 311 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Multiple flake.nix files	Updated nixpkgs to 25.05, Nix to 2.28.5, Python to 3.13, and reorganized package definitions
Multiple trunk.yaml files	Updated Trunk CLI, plugins, runtimes (Go 1.25.0, Node 22.20.0, Python 3.13.3), and linter versions
Multiple ruff.toml files	Switched to comprehensive rule set with formatter enablement
Multiple devcontainer.json files	Updated devcontainer features, removed comments, reorganized settings
Multiple test files	Removed blank lines after docstrings, improved context manager signatures
Multiple workflow files	Updated GitHub Actions versions and changed YAML folding style from > to >-
Multiple Taskfile files	Updated Task version to 3.43, changed YAML folding style, renamed/removed tasks
Multiple package.json files	Updated npm dependencies and added browserslist/devEngines configurations
Multiple eslint.config.mjs files	Complete restructure to use flat config format with improved type safety
Multiple docs config files	Updated Docusaurus configuration and added new linting/formatting configs

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