Build Variant for development (#220)

Co-authored-by: Matthias Weis <matthias1.weis@web.de>

app/build.gradle

@@ -13,12 +13,19 @@ android {
         versionName "2.3.3"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
+        signingConfig signingConfigs.debug
+        resValue "string", "app_name", "Gotify"
     }
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+        development {
+            applicationIdSuffix ".dev"
+            debuggable true
+            resValue "string", "app_name", "Gotify DEV"
+        }
     }
     compileOptions {
         sourceCompatibility = '1.8'

app/src/main/res/values/strings.xml

@@ -1,5 +1,4 @@
 <resources>
-    <string name="app_name">Gotify</string>
     <string name="navigation_drawer_open">Open navigation drawer</string>
     <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_desc">Navigation header</string>