Hide inapplicable settings on android

BUG: 456674
CCBUG: 454741
CCBUG: 456676

src/qml/Settings/AppearanceSettingsPage.qml

@@ -224,7 +224,7 @@ Kirigami.ScrollablePage {
 
                 Loader {
                     id: colorSchemeDelegate
-                    visible: item !== null
+                    visible: item !== null && Qt.platform.os !== "android"
                     source: "qrc:/ColorScheme.qml"
                     Layout.fillWidth: true
                 }

src/qml/Settings/GeneralSettingsPage.qml

@@ -58,6 +58,7 @@ Kirigami.ScrollablePage {
                     text: i18n("Automatically hide/unhide the room information when resizing the window")
                     checked: Config.autoRoomInfoDrawer
                     enabled: !Config.isAutoRoomInfoDrawerImmutable
+                    visible: Qt.platform.os !== "android"
                     onToggled: {
                         Config.autoRoomInfoDrawer = checked
                         Config.save()

src/qml/Settings/SettingsPage.qml

@@ -37,6 +37,7 @@ Kirigami.CategorizedSettings {
             text: i18n("Spell Checking")
             iconName: "tools-check-spelling"
             page: Qt.resolvedUrl("SonnetConfigPage.qml")
+            visible: Qt.platform.os !== "android"
         },
         Kirigami.SettingAction {
             text: i18n("Network Proxy")