Update build script to make output file name generate better

build.gradle

@@ -1,14 +1,12 @@
-/*
- * This file was generated by the Gradle 'init' task.
- */
-
 plugins {
     id 'java'
     id 'idea'
     id 'org.jetbrains.kotlin.jvm' version '1.6.0'
     id 'com.github.johnrengelman.shadow' version '6.0.0'
 }
 
+String pluginVersion = '1.1.0'
+
 repositories {
     mavenCentral()
     maven {
@@ -22,7 +20,7 @@ dependencies {
 }
 
 group = 'xyz.atrius'
-version = '1.1.0'
+version = pluginVersion
 description = 'Waystones'
 sourceCompatibility = '1.8'
 
@@ -54,4 +52,6 @@ compileTestKotlin {
 
 shadowJar {
     minimize()
+    archiveClassifier.set('')
+    archiveVersion.set(pluginVersion)
 }