Initial conversion of browse tabs to full Compose

TODO:
- Global search should launch a controller with the search textfield focused. This is pending a Compose rewrite of that screen.
- Better migrate sort UI
- Extensions search

app/src/main/java/eu/kanade/presentation/components/Tabs.kt

@@ -0,0 +1,50 @@
+package eu.kanade.presentation.components
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.TabPosition
+import androidx.compose.material3.TabRowDefaults
+import androidx.compose.material3.TabRowDefaults.tabIndicatorOffset
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+
+@Composable
+fun TabIndicator(currentTabPosition: TabPosition) {
+    TabRowDefaults.Indicator(
+        Modifier
+            .tabIndicatorOffset(currentTabPosition)
+            .clip(RoundedCornerShape(topStart = 3.dp, topEnd = 3.dp)),
+    )
+}
+
+@Composable
+fun TabText(
+    text: String,
+    badgeCount: Int? = null,
+    isCurrentPage: Boolean,
+) {
+    val pillAlpha = if (isSystemInDarkTheme()) 0.12f else 0.08f
+
+    Row(
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Text(
+            text = text,
+            color = if (isCurrentPage) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onBackground,
+        )
+        if (badgeCount != null) {
+            Pill(
+                text = "$badgeCount",
+                color = MaterialTheme.colorScheme.onBackground.copy(alpha = pillAlpha),
+                fontSize = 10.sp,
+            )
+        }
+    }
+}