fix: settings option chips (blob layout), real gear icon, overlay EPG filter, installer on main thread

- SegmentedRow lays label above wrapping option chips instead of
  squeezing them into the trailing slot (long profile names collapsed
  the label and blew the pill up into a blob).
- Gear icon: thick ring + stubby teeth instead of sun rays.
- Player overlay filters EPG placeholders and next==now duplicates
  like the channel list.
- Updater: startActivity from Dispatchers.Main — firing it from the IO
  dispatcher stalled the first install attempt.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/build.gradle.kts

@@ -12,8 +12,8 @@ android {
         applicationId = "dev.castarr.tv"
         minSdk = 26
         targetSdk = 35
-        versionCode = 14
-        versionName = "0.7.1"
+        versionCode = 15
+        versionName = "0.7.2"
     }
 
     // Release signing from environment (see ~/.keys/castarr-release.env on the