Update AnalysisView.vue

emit value `intervalMatrixIndex` to persist it

src/views/AnalysisView.vue

@@ -16,10 +16,19 @@ const props = defineProps<{
   scale: Scale;
   virtualSynth: VirtualSynth;
   colorScheme: "light" | "dark";
+  intervalMatrixIndexing: "zero" | "one";
 }>();
 
+const emit = defineEmits([
+  "update:intervalMatrixIndexing",
+]);
+
+const intervalMatrixIndexing = computed({
+  get: () => props.intervalMatrixIndexing,
+  set: (newValue: "zero" | "one") => emit("update:intervalMatrixIndexing", newValue),
+});
+
 const cellFormat = ref<"best" | "cents" | "decimal">("best");
-const intervalMatrixIndexing = ref<"zero" | "one">("zero");
 const matrixStartIndex = computed(() => intervalMatrixIndexing.value === "one" ? 1 : 0); 
 const trailLongevity = ref(70);
 const maxOtonalRoot = ref(16);