patch: bump Angular 21.2.15 and other libs, nginx@1.31.1-alpine-slim

[petruki]

This pull request includes a variety of updates focused on dependency upgrades, workflow improvements, and minor code and documentation adjustments. The most significant changes are the upgrade of major dependencies (notably Angular and related libraries), updates to Docker and GitHub Actions workflows, and a switch from lodash-es to es-toolkit for object merging. There are also small enhancements to development tooling and project documentation.

Dependency and Library Upgrades:

• Upgraded Angular and related dependencies (@angular/*, apollo-angular, core-js, graphql, ngx-markdown, etc.) to their latest 21.2.x or corresponding versions in package.json for improved stability and security.
• Replaced lodash-es with es-toolkit for object merging in src/libs/ng2-charts/src/lib/base-chart.directive.ts and src/libs/ng2-charts/src/lib/ng-charts.provider.ts, and updated merging logic to use reduce for better performance and maintainability. [1] [2] [3] [4] [5]

Workflow and Docker Improvements:

• Updated GitHub Actions workflow files to use the latest versions of Docker actions (setup-qemu-action, setup-buildx-action, login-action, build-push-action) for improved reliability and compatibility. [1] [2] [3]
• Updated the Nginx base image in Dockerfile from 1.29.4-alpine-slim to 1.31.1-alpine-slim for the release stage.

Development and Tooling Enhancements:

• Added .npmrc with ignore-scripts=true to prevent execution of package scripts during install, improving security.
• Added .vscode/settings.json to disable JS/TS validation by default, reducing distractions for developers working on existing code.
• Removed the unused @eslint/js import in eslint.config.mjs for a cleaner configuration.

Documentation and Community:

• Added an AI disclaimer section to README.md to clarify the project's use of AI tools and encourage transparency from contributors.
• Updated .github/FUNDING.yml to remove the patreon entry, keeping only ko_fi and github sponsors.

Minor Fixes and Refactors:

• Improved type checking in RecaptchaComponent by using typeof grecaptcha.render === 'function' for more robust validation.
• Minor refactor in BaseChartDirective to use a Set for requireRender for better performance.

Other:

• Removed the version key from docker-compose.yml and .devcontainer/docker-compose.yml, aligning with current Docker Compose recommendations. [1] [2]