feat: use new meter format

src/features/dsp408/dsp408.ts

@@ -34,14 +34,17 @@ function pollIntervalFor(id: number): number {
 
 async function poll(dsp: DSP408, setDsps: SetDsps) {
   try {
-    const meters = await invoke<DSP408['meters']>('get_meter_levels', { id: dsp.id });
+    const [input_meters, output_meters] = await invoke<
+      [DSP408['input_meters'], DSP408['output_meters']]
+    >('get_meter_levels', { id: dsp.id });
 
     updateDSP(setDsps, dsp.id, (d) =>
       d.pollingPaused
         ? d
         : ({
             ...d,
-            meters,
+            input_meters,
+            output_meters,
           } as DSP408)
     );
   } catch {
@@ -118,7 +121,8 @@ export async function create(params: {
     status: 'disconnected',
     pollingPaused: true,
     state: snapshot.state,
-    meters: snapshot.meters,
+    input_meters: snapshot.input_meters,
+    output_meters: snapshot.output_meters,
   };
 }