Apply ktlintFormat

Tool output only, no hand edits, so this is safe to read with whitespace
diffing off. It is its own commit for exactly that reason: a whole-repo
reformat folded into the commit that configured the formatter would have
made both unreviewable.

What it did, mostly: trailing commas on wrapped argument lists, signatures
collapsed onto one line where they fit inside 120 columns, import order, and
four genuinely unused imports removed. Unit tests pass unchanged.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

app/src/androidTest/java/org/libremediaconverter/fallback/HardwareFallbackTest.kt

@@ -6,9 +6,6 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.work.WorkInfo
 import androidx.work.WorkManager
-import org.libremediaconverter.model.OutputFormat
-import org.libremediaconverter.model.QualityTier
-import org.libremediaconverter.work.ConversionWorker
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.withTimeout
@@ -18,6 +15,9 @@ import org.junit.Assert.assertTrue
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
+import org.libremediaconverter.model.OutputFormat
+import org.libremediaconverter.model.QualityTier
+import org.libremediaconverter.work.ConversionWorker
 import java.io.File
 
 /**