[1.4-26.1] Reconnect

Players are now allowed to use the reconnect button and command starting with version 1.4!

What's Changed

• Update README.md by @59xa in #7
• Exclude remappedSrc by @59xa in #8
• 26.1 Port + NeoForge support by @59xa in #9
• Realms compat by @59xa in #10
• Fix build.yml by @59xa in #11
• Re-introduce wrapper validation by @59xa in #12

Full Changelog: 1.21.11...1.4-26.1