Add logging functionality and Maven publishing setup

Added Logger class with various log levels to `commonMain`. Integrated `maven-publish` and `signing` plugins in `build.gradle.kts` to facilitate publishing artifacts to the Maven repository with proper credentials and metadata. Removed `gradle.properties` and updated `.gitignore` accordingly.

build.gradle.kts

@@ -2,6 +2,8 @@ import org.jetbrains.kotlin.gradle.plugin.KotlinJsCompilerType
 
 plugins {
     kotlin("multiplatform") version "2.0.21"
+    `maven-publish`
+    signing
 }
 
 group = "nl.astraeus"
@@ -9,57 +11,65 @@ version = "1.0.0-SNAPSHOT"
 
 repositories {
     mavenCentral()
-    maven {
-        url = uri("https://gitea.astraeus.nl/api/packages/rnentjes/maven")
-    }
-    maven {
-        url = uri("https://gitea.astraeus.nl:8443/api/packages/rnentjes/maven")
-    }
 }
 
 kotlin {
-    jvmToolchain(17)
-    jvm {
-        withJava()
-    }
-    js {
-        binaries.executable()
-        browser {
-            distribution {
-                outputDirectory.set(File("$projectDir/web/"))
-            }
-        }
-    }
+    jvm {}
+    js {}
     sourceSets {
-        val commonMain by getting {
-            dependencies {
-                api("nl.astraeus:kotlin-css-generator:1.0.10")
+        val commonMain by getting
+        val jvmMain by getting
+        val jsMain by getting
+    }
+}
 
-                implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.6.0")
+publishing {
+    repositories {
+        maven {
+            name = "gitea"
+            setUrl("https://gitea.astraeus.nl/api/packages/rnentjes/maven")
+
+            credentials() {
+                val giteaUsername: kotlin.String? by project
+                val giteaPassword: kotlin.String? by project
+
+                username = giteaUsername
+                password = giteaPassword
             }
         }
-        val commonTest by getting
-        val jvmMain by getting {
-            dependencies {
-                implementation("io.undertow:undertow-core:2.3.14.Final")
-                implementation("org.jetbrains.kotlinx:kotlinx-html-jvm:0.11.0")
+    }
 
-                implementation("org.xerial:sqlite-jdbc:3.32.3.2")
-                implementation("com.zaxxer:HikariCP:4.0.3")
-                implementation("nl.astraeus:simple-jdbc-stats:1.6.1") {
-                    exclude(group = "org.slf4j", module = "slf4j-api")
+    // Configure all publications
+    publications.withType<MavenPublication> {
+        // Stub javadoc.jar artifact
+        artifact(javadocJar.get())
+
+        // Provide artifacts information requited by Maven Central
+        pom {
+            name.set("kotlin-komponent")
+            description.set("Kotlin komponent")
+            url.set("https://github.com/rnentjes/komponent")
+
+            licenses {
+                license {
+                    name.set("MIT")
+                    url.set("https://opensource.org/licenses/MIT")
                 }
             }
-        }
-        val jvmTest by getting {
-            dependencies {
+            developers {
+                developer {
+                    id.set("rnentjes")
+                    name.set("Rien Nentjes")
+                    email.set("info@nentjes.com")
+                }
+            }
+            scm {
+                url.set("https://github.com/rnentjes/komponent")
             }
         }
-        val jsMain by getting {
-            dependencies {
-                implementation("nl.astraeus:kotlin-komponent:1.2.4")
-            }
-        }
-        val jsTest by getting
     }
-}
+}
+
+signing {
+    sign(publishing.publications)
+}