v1.3.0-mc26.2-release

• Added support for Minecraft 26.2 with refreshed release dependencies.
• Fixed update checks selecting the wrong release metadata when multiple entries target the same Minecraft version.
• Fixed server-defined toast notices so current-version entries can show a toast without update download metadata.
• Kept fullscreen and chat update prompts limited to entries with a newer version.
• No local config changes are required.