Add ApplicationConfig object to help tweaking the application / brand name used across the application.

appconfig/src/main/kotlin/io/element/android/appconfig/ApplicationConfig.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.appconfig
+
+object ApplicationConfig {
+    /**
+     * Application name used in the UI for string. If empty, the value is taken from the resources `R.string.app_name`.
+     * Note that this value is not used for the launcher icon.
+     * For Element, the value is empty, and so read from `R.string.app_name`, which depends on the build variant:
+     * - "Element X" for release builds;
+     * - "Element X dbg" for debug builds;
+     * - "Element X nightly" for nightly builds.
+     */
+    const val APPLICATION_NAME: String = ""
+
+    /**
+     * Used in the strings to reference the Element client.
+     * Cannot be empty.
+     * For Element, the value is "Element".
+     */
+    const val PRODUCTION_APPLICATION_NAME: String = "Element"
+
+    /**
+     * Used in the strings to reference the Element Desktop client, for instance Element Web.
+     * Cannot be empty.
+     * For Element, the value is "Element". We use the same name for desktop and mobile for now.
+     */
+    const val DESKTOP_APPLICATION_NAME: String = "Element"
+}