Update internals (Svelte 5)

Release notes:

• Updated all dependencies to latest levels, most notably updated Svelte 4 to 5.
• Refactored code to use Svelte 5 runes and removed the use of Svelte stores.
  No new functionality.

Initial release

1.0.0

Changes to apply Obsidian policies for plugin, see Obsidian PR #3870