Adds Support modal w/ initial support for discord

[kc9wwh]

Description

This PR implements a Support Ticketing System with Discord integration for the Pocket ID App Launcher.

• Frontend: Added a Support button and interactive modal in src/routes/+page.svelte allowing users to select affected applications and describe their issue.
• Backend: Added a reportIssue form action in src/routes/+page.server.ts that validates form submissions and posts structured ticket alerts directly to a configured Discord webhook (with optional user pinging via DISCORD_USER_ID).
• Configuration & Unraid: Updated .env.example, ca_profile.xml, and assets/PocketID-App-Launcher.xml to include DISCORD_WEBHOOK_URL and DISCORD_USER_ID.
• Documentation: Updated README.md with environment variable specifications and Discord webhook setup instructions.

Type of Change

• New feature (non-breaking change which adds functionality)
• Documentation update

How Has This Been Tested?

• Automated test: npm run check (0 errors, 0 warnings) and npm run build (successful production bundle output).

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Security Impact

Does this PR introduce any changes that affect the security of the application (authentication, data handling, etc.)?

• No

[kc9wwh]

Manual testing completed -- Deployed to home lab; validated existing functionality and support modal works