Fiddle: change export to be all in styles.css and styles.scss

[krishan711]

Description

Screenshots:

Checklist:

• I have updated the CHANGELOG with a summary of my changes
• I have updated the documentation accordingly

[Copilot]

Pull request overview

This PR simplifies the package exports for styles by consolidating them into cleaner, more intuitive paths (./styles.css and ./styles.scss) and introduces a comprehensive SCSS entry point that includes all component styles.

• Simplified style exports from multiple paths to two clear options
• Created src/styles/all.scss aggregating all base styles and component styles
• Updated build tooling dependency to latest version

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
src/styles/all.scss	New comprehensive SCSS entry point importing all base styles and component styles (particles, layouts, atoms, molecules, wrappers)
package.json	Updated exports to use ./styles.css and ./styles.scss, expanded files array to include component SCSS files, bumped @kibalabs/build version
package-lock.json	Standard lockfile update reflecting the @kibalabs/build version bump and its transitive dependencies