refactor: integrate Koin for dependency injection across platforms

webApp/build.gradle.kts

@@ -22,7 +22,8 @@ kotlin {
         commonMain.dependencies {
             implementation(projects.shared)
 
+            // Compose
             implementation(libs.compose.ui)
         }
     }
-}
+}

webApp/src/webMain/kotlin/fr/ajaury/gwenedeg/main.kt

@@ -1,3 +1,5 @@
+@file:Suppress("ktlint:standard:filename")
+
 package fr.ajaury.gwenedeg
 
 import androidx.compose.ui.ExperimentalComposeUiApi