Added saveRadios function & imported funcs in Client.ts

src/client/funcs/saveRadios.js

@@ -0,0 +1,20 @@
+module.exports =  async function saveRadios(client) {
+    let currentRadios = client.radio.keys();
+    let radio = currentRadios.next();
+    
+    while (!radio.done) {
+        let currentRadio = client.radio.get(radio.value);
+        currentRadio.guild = client.datastore.getEntry(radio.value).guild;
+    
+        if (currentRadio) {
+            await client.funcs.statisticsUpdate(client, currentRadio.guild, currentRadio);
+            await client.funcs.saveState(client, currentRadio.guild, currentRadio);
+            currentRadio.connection?.destroy();
+            currentRadio.audioPlayer?.stop();
+            currentRadio.message?.delete();
+            client.radio.delete(radio.value);
+        }
+        
+        radio = currentRadios.next();
+    }
+}