Convert Extension tab to use Compose (#7107)

* Convert Extension tab to use Compose

Co-authored-by: jobobby04 <17078382+jobobby04@users.noreply.github.com>

* Review changes

Co-authored-by: jobobby04 <17078382+jobobby04@users.noreply.github.com>

app/src/main/java/eu/kanade/presentation/source/SourceScreen.kt

@@ -1,13 +1,10 @@
 package eu.kanade.presentation.source
 
-import androidx.compose.foundation.Image
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.asPaddingValues
-import androidx.compose.foundation.layout.aspectRatio
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
@@ -31,7 +28,6 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import eu.kanade.domain.source.model.Pin
@@ -191,29 +187,6 @@ fun SourceItem(
     )
 }
 
-@Composable
-fun SourceIcon(
-    source: Source,
-) {
-    val icon = source.icon
-    val modifier = Modifier
-        .height(40.dp)
-        .aspectRatio(1f)
-    if (icon != null) {
-        Image(
-            bitmap = icon,
-            contentDescription = "",
-            modifier = modifier,
-        )
-    } else {
-        Image(
-            painter = painterResource(id = R.mipmap.ic_local_source),
-            contentDescription = "",
-            modifier = modifier,
-        )
-    }
-}
-
 @Composable
 fun SourcePinButton(
     isPinned: Boolean,