Moved everything in /assets/ to /assets/plan

Plan/common/src/main/java/com/djrapitops/plan/system/file/PlanFiles.java

@@ -91,11 +91,11 @@ public class PlanFiles implements SubSystem {
     /**
      * Get a file in the jar as a {@link Resource}.
      *
-     * @param resourceName Path to the file inside jar/assets/ folder.
+     * @param resourceName Path to the file inside jar/assets/plan/ folder.
      * @return a {@link Resource} for accessing the resource.
      */
     public Resource getResourceFromJar(String resourceName) {
-        return new JarResource("assets/" + resourceName, () -> plugin.getResource("assets/" + resourceName));
+        return new JarResource("assets/plan/" + resourceName, () -> plugin.getResource("assets/plan/" + resourceName));
     }
 
     /**

Plan/common/src/main/java/com/djrapitops/plan/system/settings/ConfigSystem.java

@@ -84,7 +84,7 @@ public abstract class ConfigSystem implements SubSystem {
                 setDebugMode();
             }
         } catch (IOException e) {
-            throw new EnableException("Failed to save default config.", e);
+            throw new EnableException("Failed to save default config: " + e.getMessage(), e);
         }
         theme.enable();
     }