Cleanup, made compatible with gitlab build.

app/build.gradle.kts

@@ -12,9 +12,8 @@ android {
         minSdk = 26
         targetSdk = 34
         versionCode = 1
-        versionName = "1.0"
+        versionName = "UNKNOWN"
 
-        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
             useSupportLibrary = true
         }

app/src/main/java/nl/rubend/zwemtimer/Timer.kt

@@ -2,18 +2,12 @@ package nl.rubend.zwemtimer
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.IntrinsicSize
 import androidx.compose.foundation.layout.fillMaxHeight
-import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.MutableState
-import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
@@ -22,14 +16,8 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.Color.Companion.Green
-import androidx.compose.ui.graphics.Color.Companion.Red
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.platform.LocalDensity
-import androidx.compose.ui.unit.TextUnit
-import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.datetime.Clock
 import kotlinx.datetime.Instant