Added filters for notifications and system tray items. (#234)

* Added filters for notifications and systray. closes #233

* Add links to documentation.

lib/shared/media.ts

@@ -13,17 +13,17 @@ export const getCurrentPlayer = (activePlayer: MprisPlayer = mpris.players[0]):
     }
 
     const isPlaying = mpris.players.some(
-        (p) => p["play-back-status"] === "Playing",
+        (p: MprisPlayer) => p.play_back_status === "Playing",
     );
 
     const playerStillExists = mpris.players.some(
-        (p) => activePlayer["bus-name"] === p["bus-name"],
+        (p) => activePlayer.bus_name === p.bus_name
     );
 
     const nextPlayerUp = mpris.players.sort(
-        (a, b) =>
-            statusOrder[a["play-back-status"]] -
-            statusOrder[b["play-back-status"]],
+        (a: MprisPlayer, b: MprisPlayer) =>
+            statusOrder[a.play_back_status] -
+            statusOrder[b.play_back_status],
     )[0];
 
     if (isPlaying || !playerStillExists) {

lib/shared/notifications.ts

@@ -0,0 +1,15 @@
+import { Notification } from "types/service/notifications";
+
+export const filterNotifications = (notifications: Notification[], filter: string[]): Notification[] => {
+
+    const notifFilter = new Set(
+        filter.map((name: string) => name.toLowerCase().replace(/\s+/g, '_'))
+    );
+
+    const filteredNotifications = notifications.filter((notif: Notification) => {
+        const normalizedAppName = notif.app_name.toLowerCase().replace(/\s+/g, '_');
+        return !notifFilter.has(normalizedAppName);
+    });
+
+    return filteredNotifications;
+}