fix: adjust presets declaration and preset consumption and fix minor types issues

[ryu-man]

No description provided.

[Copilot]

Pull Request Overview

This PR fixes preset declaration inconsistencies and type exports in the @svelte-atoms/core library. The changes ensure that component presets correctly reference their namespaced identifiers and that type exports are properly structured.

Key Changes:

• Fixed incorrect preset references in stack-root and input-root components
• Reorganized ModuleName type to use consistent namespacing pattern
• Improved type exports from the atom module

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/lib/context/preset.svelte.ts	Reorganized ModuleName type to use proper namespacing (input.root, stack.root) instead of generic names
src/lib/components/stack/stack-root.svelte	Fixed preset reference from 'stack' to 'stack.root'
src/lib/components/input/input-root.svelte	Fixed preset reference from incorrect 'stack' to correct 'input.root'
src/lib/components/atom/types.ts	Added ElementType import and re-export for better type accessibility
src/lib/components/atom/index.ts	Consolidated exports to use barrel pattern with wildcard type exports
package.json	Version bump to 1.0.0-alpha.16
.github/copilot-instructions.md	Removed extraneous blank line