Working on processors a tiny bit

src/lib/audio/processors/Normalize.ts

@@ -1,4 +1,4 @@
-import type { AudioProcessor } from "./AudioProcessor";
+import type { AudioProcessor, ProcessorCategory } from "./AudioProcessor";
 
 export class Normalize implements AudioProcessor {
   getName(): string {
@@ -9,6 +9,10 @@ export class Normalize implements AudioProcessor {
     return "Normalizes audio to maximum amplitude without clipping";
   }
 
+  getCategory(): ProcessorCategory {
+    return 'Amplitude';
+  }
+
   async process(
     leftChannel: Float32Array,
     rightChannel: Float32Array