[Linux] Use segment control for setting noise control mode (#92)

* [Linux] Enhance GUI with icons

* Improve visibility

* Smarter hiding of battery values

* Add simple opacity based ear detection indication

* Hide disconnected devices

* Add airpods 3 icon

* Support more devices

* Better icons

* Add documentation

* Add segmented control

* Support keyboard navigation

* Fix ear detection when primary pod changes

* Support up to 9 modes with the keyboard

* Redisign

* Use id

* Use correct images

* Remove duplicates

* Use correct image

* Remove more merge conflicts

* Remove unused code

* Remove unused code

* Make all text readbale

linux/battery.hpp

@@ -104,7 +104,12 @@ public:
         // Set primary and secondary pods based on order
         if (!podsInPacket.isEmpty())
         {
-            primaryPod = podsInPacket[0]; // First pod is primary
+            Component newPrimaryPod = podsInPacket[0]; // First pod is primary
+            if (newPrimaryPod != primaryPod)
+            {
+                primaryPod = newPrimaryPod;
+                emit primaryChanged();
+            }
         }
         if (podsInPacket.size() >= 2)
         {
@@ -166,6 +171,7 @@ public:
 
 signals:
     void batteryStatusChanged();
+    void primaryChanged();
 
 private:
     bool isStatus(Component component, BatteryStatus status) const