Feature/streamline settings (#1614)

* Cleanup graphql setting mutation

* Validate values read from config

* Generate server-reference.conf files from ServerConfig

* Remove unnecessary enum value handling in config value update

Commit df0078b725 introduced the usage of config4k, which handles enums automatically. Thus, this handling is outdated and not needed anymore

* Generate gql SettingsType from ServerConfig

* Extract settings backup logic

* Generate settings backup files

* Move "group" arg to second position

To make it easier to detect and have it at the same position consistently for all settings.

* Remove setting generation from compilation

* Extract setting generation code into new module

* Extract pure setting generation code into new module

* Remove generated settings files from src tree

* Force each setting to set a default value

server/build.gradle.kts

@@ -92,6 +92,9 @@ dependencies {
     // i18n
     implementation(projects.server.i18n)
 
+    // Settings module
+    implementation(projects.server.serverConfig)
+
     // uncomment to test extensions directly
 //    implementation(fileTree("lib/"))
     implementation(kotlin("script-runtime"))
@@ -123,6 +126,15 @@ sourceSets {
     main {
         resources {
             srcDir("src/main/resources")
+            srcDir("build/generated/src/main/resources")
+        }
+        kotlin {
+            srcDir("build/generated/src/main/kotlin")
+        }
+    }
+    test {
+        resources {
+            srcDir("build/generated/src/test/resources")
         }
     }
 }
@@ -229,4 +241,12 @@ tasks {
     runKtlintCheckOverMainSourceSet {
         mustRunAfter(generateJte)
     }
+
+    compileKotlin {
+        dependsOn(":server:server-config-generate:generateSettings")
+    }
+
+    processResources {
+        dependsOn(":server:server-config-generate:generateSettings")
+    }
 }