Add support for customizing how external links behave when clicked in public LegendKeeper projects. This includes the ability to open external links in: A new browser tab (target="_blank") A new window ( window.open ) The same tab (default behavior) Use Case & Rationale: LegendKeeper is widely used by worldbuilders, TTRPG creators, and publishers who often link to external resources such as: - Ko-Fi, Patreon, or other support platforms - D&D Beyond, World Anvil, or reference sites YouTube, Discord, and other media Currently, public-world users cannot control how these external links open. Many users — especially those sharing public maps — want external links to open in a new tab or window so users don’t lose their place within the LegendKeeper world. This is especially critical when: Providing persistent world access alongside monetization links Ensuring good UX where users expect external links not to navigate away Proposed Solutions: Default Behavior Setting in Public World Settings: Toggle to set external links to open in: - Same tab (default) - New tab (target="_blank") - New window ( window.open ) Markdown Extension or Syntax Support: Allow Markdown like: Support me on Ko-Fi {:target="_blank"} Or automatic detection of external links with optional override per link. Auto-detect External Links: External links (i.e., not within the same LegendKeeper world) could default to open in a new tab unless specified otherwise. Benefits: Improves user experience on both desktop and mobile Keeps users immersed in the world while exploring supplemental content Matches web accessibility and modern usability expectations Priority: Medium-High — a small change with major UX improvement for many public and embedded use cases.