Landmark-map

Added

• Minecraft 26.3. A new jar, landmark-<version>+mc26.3.jar (Java 25, Fabric Loader 0.19.3 or newer). Minecraft 26.3 moved from GLFW to SDL for windowing and input and renamed some rendering classes, so the 26.2 jar does not load on it.

Fixed

• Importing an export from a Pl3xMap that formats claim tooltips differently ("The export contains no lands"). The tooltip reader now accepts the newer style (<v:land_color> placeholder, plain newline after the name) as well as the older one.
• Mouse input on Minecraft 26.3: its mouse buttons start at 1 instead of 0, so left clicks were ignored (no panning, no selecting or teleporting). Left-click checks now use Minecraft's own constant on every version.

Changed

• Key handling in the common code uses Minecraft's own key constants instead of GLFW's, so it follows the key space of whichever version is running.