Add discord rich presence (#72)

src/main/preload/discord-rpc.ts

@@ -0,0 +1,28 @@
+import { SetActivity } from '@xhayper/discord-rpc';
+import { ipcRenderer } from 'electron';
+
+const initialize = (clientId: string) => {
+    const client = ipcRenderer.invoke('discord-rpc-initialize', clientId);
+    return client;
+};
+
+const clearActivity = () => {
+    ipcRenderer.invoke('discord-rpc-clear-activity');
+};
+
+const setActivity = (activity: SetActivity) => {
+    ipcRenderer.invoke('discord-rpc-set-activity', activity);
+};
+
+const quit = () => {
+    ipcRenderer.invoke('discord-rpc-quit');
+};
+
+export const discordRpc = {
+    clearActivity,
+    initialize,
+    quit,
+    setActivity,
+};
+
+export type DiscordRpc = typeof discordRpc;