chore: Clean up find uses and refactor policy plugin loading (#20)

Author: sschuberth

core/src/commonMain/kotlin/com/deezer/caupain/internal/cache.kt

@@ -76,7 +76,7 @@ private class CachingCacheStorage(
             store[url] = delegate.findAll(url)
         }
         val data = store.getValue(url)
-        return data.find {
+        return data.firstOrNull {
             varyKeys.all { (key, value) -> it.varyKeys[key] == value } && varyKeys.size == it.varyKeys.size
         }
     }
@@ -115,7 +115,7 @@ private class FileCacheStorage(
 
     override suspend fun find(url: Url, varyKeys: Map<String, String>): CachedResponseData? {
         val data = readCache(key(url))
-        return data.find {
+        return data.firstOrNull {
             varyKeys.all { (key, value) -> it.varyKeys[key] == value } && varyKeys.size == it.varyKeys.size
         }
     }

core/src/jvmMain/kotlin/com/deezer/caupain/model/ServiceLoaderPolicies.kt

@@ -33,9 +33,7 @@ import java.util.ServiceLoader
 internal actual fun loadPolicies(paths: Iterable<Path>, logger: Logger): Iterable<Policy> {
     val childClassLoader = URLClassLoader(
         paths
-            .asSequence()
-            .map { it.toNioPath().toUri().toURL() }
-            .toList()
+            .mapTo(mutableListOf()) { it.toNioPath().toUri().toURL() }
             .toTypedArray(),
         Policy::class.java.classLoader
     )