refactor: remove bottom navigation bar (#665 #666 #667 #668) (#672)

* refactor(nav): remove bottom NavigationBar from Scaffold (#665)

* refactor(theme): remove BottomNavDisplayMode enum (#666)

* refactor(settings): remove nav bar customization page (#667)

* chore: clean up unused imports after bottom nav removal (#668)

* chore: remove dead bottom nav infrastructure after removal

- Remove SettingsNavBar NavKey (NavigationKeys.kt)
- Remove bottomNavItems field from ServerStoreState + migration code
- Remove _bottomNavItemsFlow, getBottomNavItems, setBottomNavItems from AuthManager
- Remove bottomNavItems handling from selfHealed() (ServerCollectionOps)
- Remove redundant bottomBar={} from Scaffold (Navigation.kt)
- Remove unused nav bar strings from values/strings.xml + values-ko/strings.xml
- Remove content_desc_move_up/down/remove_item strings
- Update SettingsViewModelTest.kt (drop stale getBottomNavItems mock)
- Update ServerStoreTest.kt (remove bottomNavItems assertions)

---------

Co-authored-by: M57 <Hy4ri@users.noreply.github.com>

app/src/androidTest/java/com/m57/hermescontrol/BottomNavigationLayoutTest.kt

@@ -1,60 +0,0 @@
-package com.m57.hermescontrol
-
-import androidx.compose.foundation.layout.Box
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.testTag
-import androidx.compose.ui.test.assertHeightIsAtLeast
-import androidx.compose.ui.test.assertHeightIsEqualTo
-import androidx.compose.ui.test.junit4.createComposeRule
-import androidx.compose.ui.test.onNodeWithTag
-import androidx.compose.ui.unit.dp
-import androidx.test.ext.junit.runners.AndroidJUnit4
-import androidx.test.filters.MediumTest
-import com.m57.hermescontrol.theme.BottomNavDisplayMode
-import org.junit.Rule
-import org.junit.Test
-import org.junit.runner.RunWith
-
-/**
- * Instrumented tests for [Modifier.bottomNavigationHeight].
- *
- * Each compact bottom-nav display mode maps to a specific bar height:
- *  - [BottomNavDisplayMode.ICON_ONLY]      -> 56.dp (fixed)
- *  - [BottomNavDisplayMode.TEXT_ONLY]      -> 44.dp (fixed)
- *  - [BottomNavDisplayMode.ICON_AND_TEXT]  -> min 80.dp (can grow)
- *
- * We apply the modifier to a tagged [Box] and assert the resulting height on
- * a real Compose host (this requires the instrumentation test runner, hence
- * androidTest rather than the Robolectric-free JVM test source set).
- */
-@RunWith(AndroidJUnit4::class)
-@MediumTest
-class BottomNavigationLayoutTest {
-    @get:Rule
-    val composeTestRule = createComposeRule()
-
-    @Test
-    fun iconOnly_barHeightIs56dp() {
-        composeTestRule.setContent {
-            Box(Modifier.testTag("bar").bottomNavigationHeight(BottomNavDisplayMode.ICON_ONLY))
-        }
-        composeTestRule.onNodeWithTag("bar").assertHeightIsEqualTo(56.dp)
-    }
-
-    @Test
-    fun textOnly_barHeightIs44dp() {
-        composeTestRule.setContent {
-            Box(Modifier.testTag("bar").bottomNavigationHeight(BottomNavDisplayMode.TEXT_ONLY))
-        }
-        composeTestRule.onNodeWithTag("bar").assertHeightIsEqualTo(44.dp)
-    }
-
-    @Test
-    fun iconAndText_barHeightIsAtLeast80dp() {
-        composeTestRule.setContent {
-            Box(Modifier.testTag("bar").bottomNavigationHeight(BottomNavDisplayMode.ICON_AND_TEXT))
-        }
-        // heightIn(min = 80.dp) — assert the measured height meets the minimum.
-        composeTestRule.onNodeWithTag("bar").assertHeightIsAtLeast(80.dp)
-    }
-}