Makes it possible to enable debug mode

Debug mode is now enabled if the property `debug = true` is set in `conf/config.properties`
Changes code for reading internal configurations
Changes many primitive lists to List<>
Adds some missing annotations
Renames the main class

src/main/java/net/knarcraft/ffmpegconverter/handler/AvailableHardwareEncoderHandler.java

@@ -1,14 +1,12 @@
 package net.knarcraft.ffmpegconverter.handler;
 
+import net.knarcraft.ffmpegconverter.FFMpegConvert;
+import net.knarcraft.ffmpegconverter.config.ConfigHandler;
 import net.knarcraft.ffmpegconverter.utility.OutputUtil;
 import org.apache.commons.configuration2.Configuration;
 import org.apache.commons.configuration2.PropertiesConfiguration;
-import org.apache.commons.configuration2.builder.FileBasedConfigurationBuilder;
-import org.apache.commons.configuration2.builder.fluent.Configurations;
-import org.apache.commons.configuration2.ex.ConfigurationException;
 import org.jetbrains.annotations.NotNull;
 
-import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
@@ -18,8 +16,7 @@ import java.util.List;
  */
 public record AvailableHardwareEncoderHandler(@NotNull List<String> availableHardwareEncodings) {
 
-    private static final File configFolder = new File("conf").getAbsoluteFile();
-    private static final Configurations configurations = new Configurations();
+    private static final ConfigHandler configHandler = FFMpegConvert.getConfigHandler();
 
     /**
      * Gets all hardware encodings
@@ -42,30 +39,12 @@ public record AvailableHardwareEncoderHandler(@NotNull List<String> availableHar
     }
 
     /**
-     * Saves settings fro this available hardware encoder handler
-     *
-     * @throws ConfigurationException <p>If the configuration file cannot be saved</p>
+     * Saves settings for this available hardware encoder handler
      */
-    public void save() throws ConfigurationException {
-        OutputUtil.printDebug("Preparing to save config");
-        if (!configFolder.exists() && !configFolder.mkdir()) {
-            throw new RuntimeException("Unable to create config folder. Make sure to run this .jar file from a " +
-                    "writable directory!");
-        }
-        File settingsFile = new File(configFolder, "config.properties");
-        try {
-            if (!settingsFile.exists() && !settingsFile.createNewFile()) {
-                OutputUtil.println("Failed to create configuration file.");
-            }
-        } catch (IOException e) {
-            OutputUtil.println("Failed to create configuration file.");
-        }
-
-        FileBasedConfigurationBuilder<PropertiesConfiguration> builder =
-                configurations.propertiesBuilder(settingsFile);
-        PropertiesConfiguration config = builder.getConfiguration();
-        config.setProperty("encoder.hardware", this.availableHardwareEncodings);
-        builder.save();
+    public void save() {
+        PropertiesConfiguration configuration = configHandler.getWritableConfiguration();
+        configuration.setProperty("encoder.hardware", this.availableHardwareEncodings);
+        configHandler.writeConfiguration();
         OutputUtil.printDebug("Saved available hardware encoder handler");
     }
 
@@ -73,14 +52,15 @@ public record AvailableHardwareEncoderHandler(@NotNull List<String> availableHar
      * Loads saved settings for an available hardware encoder handler
      *
      * @return <p>The loaded available hardware encoder handler, or a new one if no data has been saved</p>
-     * @throws ConfigurationException <p>If the configuration file cannot be loaded</p>
      */
-    public static AvailableHardwareEncoderHandler load() throws ConfigurationException {
-        File settingsFile = new File(configFolder, "config.properties");
-        if (!settingsFile.exists()) {
-            return new AvailableHardwareEncoderHandler(new ArrayList<>());
+    @NotNull
+    public static AvailableHardwareEncoderHandler load() {
+        Configuration configuration;
+        try {
+            configuration = configHandler.load();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
         }
-        Configuration configuration = configurations.properties(settingsFile);
         List<String> getEncodings = configuration.getList(String.class, "encoder.hardware");
         return new AvailableHardwareEncoderHandler(getEncodings);
     }