Clean up and update Gradle setup

[lukebemish]

Some general cleanups and updates to the Gradle setup:

• Make gradlew executable (with chmod +x gradlew). This is necessary for using the template from the CLI in a unix-like environment.
• Stop disabling the daemon. There is no reason to disable the daemon nowadays (FG used to break it back in the day) and it's useful to make invoking gradle a bit faster.
• Enable configuration cache, and make necessary cleanups for configuration cache compatibility.
• General consistency: tabs/spaces fixed, use the normal gitattributes treatment with LF in gradle files, use version ranges derived from the version you build against more broadly, and the like
• Update gradle plugins, and move the few straggling version declarations to gradle.properties
• Migrate buildSrc to a build-logic included build -- as Gradle recommends.
• Change project names and remove explicit artifactId and archivesName declarations. By setting the project names to sensible defaults, all of these are derived automatically as we would like. The IDEA bug that used to prevent this has been fixed for two years.
• Better reproducibility -- in CI runs or other instances where the exact version is passed in, the build should be reproducible (so no timestamps in the manifest!)

[lukebemish]

Note: this changes the coordinates the template publishes under to be more consisent. That can be changed back without too much issue by using the old root name to build the project names instead of the mod ID.

[KiriCattus]

All looks amazing to me, had a little tinker around and nothing seems wrong and I like what you've done with the fixes/changes :D Thanks for the PR!