feat: UI Changes

* fix(#220): implement edit soul and set model dialogs

* fix(#211): make UI more compact and information dense

* fix(#211): make navigation drawer sidebar more compact

* feat(#252): move settings item to end of navigation drawer

* feat(#250): add bottom navigation bar display mode settings

* feat(#225): add search bar filtering to remaining screens

* fix: make bottom navigation bar display modes more compact

* fix: resolve compilation error in KanbanScreen by referencing assignedTo

* feat: add search to achievements screen and top padding for icon-only navigation bar

* fix: adjust icon-only bottom bar height and remove padding

* fix(#249): remove unused PaddingValues imports in 6 screens

---------

Co-authored-by: M57 <hy4ri@users.noreply.github.com>

app/src/main/java/com/m57/hermescontrol/ui/channels/ChannelsScreen.kt

@@ -3,7 +3,6 @@ package com.m57.hermescontrol.ui.channels
 import android.widget.Toast
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
@@ -39,6 +38,9 @@ import com.m57.hermescontrol.ui.common.EmptyState
 import com.m57.hermescontrol.ui.common.ErrorState
 import com.m57.hermescontrol.ui.common.HermesScaffold
 import com.m57.hermescontrol.ui.common.LoadingState
+import com.m57.hermescontrol.ui.common.SearchBar
+import com.m57.hermescontrol.ui.common.listContentPadding
+import com.m57.hermescontrol.ui.common.listItemSpacing
 
 @Composable
 fun ChannelsScreen(
@@ -49,6 +51,15 @@ fun ChannelsScreen(
     val state by viewModel.uiState.collectAsStateWithLifecycle()
     val context = LocalContext.current
 
+    var query by remember { mutableStateOf("") }
+
+    val filteredPlatforms =
+        remember(query, state.platforms) {
+            state.platforms.filter { platform ->
+                platform.name.contains(query, ignoreCase = true)
+            }
+        }
+
     LaunchedEffect(Unit) {
         viewModel.loadPlatforms()
     }
@@ -90,10 +101,17 @@ fun ChannelsScreen(
             else -> {
                 LazyColumn(
                     modifier = Modifier.fillMaxSize().padding(paddingValues),
-                    contentPadding = PaddingValues(16.dp),
-                    verticalArrangement = Arrangement.spacedBy(16.dp),
+                    contentPadding = listContentPadding,
+                    verticalArrangement = listItemSpacing,
                 ) {
-                    items(state.platforms, key = { it.id }) { platform ->
+                    item {
+                        SearchBar(
+                            query = query,
+                            onQueryChange = { query = it },
+                            placeholder = "Search channels...",
+                        )
+                    }
+                    items(filteredPlatforms, key = { it.id }) { platform ->
                         var showConfigureForm by remember { mutableStateOf(false) }
 
                         Card(modifier = Modifier.fillMaxWidth()) {