2.0.1 svelte simple modal for Svelte5 Only Rune Mode

[Neptunium1129]

• Svelte5 only Rune mode
• add : function ContentOutside open Mode > Maximum update depth exceeded problem
• edit : function bind : mount is maybe bug? detail is Svelte5 migration #114
• add : autofocus modal contents

Hi there 👋

Thank you so much for creating a PR. To streamline the process and make sure that your changes can get merged easily, please stick to the following structure. See #47 for an example of how to create an excellent PR description.

Background

Describe the context on how you use svelte-simple-modal. E.g., plain Svelte app, SvelteKit, Sapper, SSR, etc.

Currently Observed Behavior

• detail is Svelte5 migration #114
• Bug Fix: mount was causing component duplication when repeatedly clicked.
• mount was causing potential duplication issues when repeatedly clicking the button

New Behavior

• Add: ContentOutside open mode - Prevents excessive updates, which were leading to a "Maximum update depth exceeded" error.
• Add: Autofocus support for modal content - Ensures that modal elements receive focus when opened.

[Neptunium1129]

plz check this pull

• https://svelte.dev/playground/033e824fad0a4e34907666e7196caec4?version=5.33.18
• Error
  Svelte error: component_api_invalid_new
  Attempted to instantiate Popup.svelte with new Popup, which is no longer valid in Svelte 5. If this component is not under your control, set the compatibility.componentApi compiler option to 4 to keep it working.
  https://svelte.dev/e/component_api_invalid_new
  at component_api_invalid_new (playground:output:179:18)