vc=26: look + feel pass — sulkta.com palette + Material Icons

Color palette pulled directly from sulkta.com's stylesheet — the same
greens used on the website now drive the app theme:
  #166534  deep green   (light-theme primary, top app bar background)
  #4ade80  bright lime  (dark-theme primary, accents in dark mode)
  #86efac  light green  (primaryContainer in light theme)
  #e8f5e8  pale green   (secondary container tint)
  #d97706  amber accent (tertiary)
  #374137  olive gray   (secondary on light, container on dark)

Replaces the made-up forest palette from vc=23 with the real Sulkta
brand. Same M3 tonal-role mapping so derived surfaces stay consistent.

TopAppBar redone NewPipe-style: solid deep-green bar with white
"straw" title, white hamburger + search icons. Clear bold header
instead of the previous white-with-a-pill-underneath layout.

Material Icons swapped in everywhere we had emoji:
  drawer        Person / History / PlaylistPlay / Download / Settings
  minibar       PlayArrow / Pause / Close
  fullscreen    Speed / Headphones / Videocam / Share /
                PictureInPictureAlt / KeyboardArrowDown
Pulled in material-icons-extended (4 MB APK growth, all icons).
Consistent renders across vendors; no more emoji font fallback drift.

FeedRow gets a NewPipe-style duration pill burned into the bottom-right
of every thumbnail (mm:ss / h:mm:ss). Live streams / mixes with no
duration leave it off.

Audit deferred-MED items addressed:
  MED-6: dropped the PlayerService STATE_ENDED auto-stop. Service
  shutdown is now driven only by onTaskRemoved + the minibar's ×.
  Removes the implicit "we'll never queue" assumption and is correct
  for a future autoplay/queue feature.
  LOW-7: DownloadsScreen adaptive poll — 1s while a download is
  active, 5s when idle. No more wasted DB queries when nothing
  is running.

strawApp/build.gradle.kts

@@ -81,7 +81,7 @@ dependencies {
     implementation(libs.jetbrains.compose.foundation)
     implementation(libs.jetbrains.compose.material3)
     implementation(libs.jetbrains.compose.ui)
-    implementation("androidx.compose.material:material-icons-core:1.7.5")
+    implementation("androidx.compose.material:material-icons-extended:1.7.5")
 
     // Lifecycle + ViewModel for Compose
     implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.10.0")