[android] Add OSM subtitle to splash

Adds a "Map data from OpenStreetMap' subtitle to the splash screen
Signed-off-by: Harry Bond <endim8@pm.me>

android/res/layout/activity_splash.xml

@@ -1,30 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
+<LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
-  android:layout_height="match_parent">
-
-  <View
-    android:id="@+id/anchor_center"
-    android:layout_width="1dp"
-    android:layout_height="1dp"
-    android:layout_centerInParent="true"/>
+  android:layout_height="match_parent"
+  android:orientation="vertical"
+  android:gravity="center">
 
   <ImageView
-    android:id="@+id/iv__logo"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:src="@drawable/splash"
-    android:layout_centerVertical="true"
-    android:layout_centerHorizontal="true"/>
+      android:id="@+id/iv__logo"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:contentDescription="@null"
+      android:src="@drawable/splash"
+      android:layout_weight="1000"
+      android:layout_margin="@dimen/margin_double"/>
 
-  <TextView
-    android:id="@+id/tv__app_name"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:layout_alignParentBottom="true"
-    android:layout_centerHorizontal="true"
-    android:layout_marginBottom="@dimen/margin_double_plus"
-    android:textAppearance="@style/MwmTextAppearance.Title"
-    android:text="@string/app_name"/>
-</RelativeLayout>
+  <LinearLayout
+      android:gravity="center"
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:layout_alignParentBottom="true"
+      android:paddingBottom="@dimen/margin_double">
+
+    <TextView
+        android:id="@+id/tv__app_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="@dimen/margin_eighth"
+        android:text="@string/app_name"
+        android:gravity="center_horizontal"
+        android:textAppearance="@style/MwmTextAppearance.Title" />
+
+    <TextView
+        android:id="@+id/tv__splash_subtitle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/splash_subtitle"
+        android:layout_marginStart="@dimen/margin_double"
+        android:layout_marginEnd="@dimen/margin_double"
+        android:gravity="center_horizontal"
+        android:textAppearance="@style/MwmTextAppearance.Toolbar" />
+
+  </LinearLayout>
+
+</LinearLayout>

android/res/values/styles-text.xml

@@ -14,6 +14,7 @@
   <style name="MwmTextAppearance.Title">
     <item name="android:textSize">@dimen/text_size_title</item>
     <item name="android:textColor">?android:textColorPrimary</item>
+    <item name="android:textStyle">bold</item>
   </style>
 
   <style name="MwmTextAppearance.Title.Toolbar">

data/strings/strings.txt

@@ -23458,3 +23458,42 @@
     vi = Dấu chân
     zh-Hans = 追踪
     zh-Hant = 追踪
+
+  [splash_subtitle]
+    comment = OpenStreetMap text on splash screen
+    tags = android
+    en = Map data from OpenStreetMap
+    ar = OpenStreetMap ﻦﻣ ﺔﻄﻳﺮﺨﻟﺍ ﺕﺎﻧﺎﻴﺑ
+    be = Дадзеныя карты з OpenStreetMap
+    bg = Картографски данни от OpenStreetMap
+    cs = Mapová data z OpenStreetMap
+    da = Kortdata fra OpenStreetMap
+    de = Kartendaten von OpenStreetMap
+    el = Δεδομένα χάρτη από το OpenStreetMap
+    es = Datos de mapas de OpenStreetMap
+    eu = Maparen datuak OpenStreetMap-en
+    fa = OpenStreetMap ﺯﺍ ﻪﺸﻘﻧ ﯼﺎﻫ ﻩﺩﺍﺩ
+    fi = OpenStreetMapin karttatiedot
+    fr = Données cartographiques d'OpenStreetMap
+    he = OpenStreetMap-מ הפמ ינותנ
+    hu = Térképadatok az OpenStreetMapből
+    id = Data peta dari OpenStreetMap
+    it = Dati della mappa da OpenStreetMap
+    ja = OpenStreetMapからの地図データ
+    ko = OpenStreetMap의 지도 데이터
+    nb = Kartdata fra OpenStreetMap
+    nl = Kaartgegevens van OpenStreetMap
+    pl = Dane mapy z OpenStreetMap
+    pt = Dados cartográficos do OpenStreetMap
+    pt-BR = Dados do mapa do OpenStreetMap
+    ro = Date cartografice din OpenStreetMap
+    ru = Картографические данные из OpenStreetMap
+    sk = Mapové údaje z OpenStreetMap
+    sv = Kartdata från OpenStreetMap
+    sw = Data ya ramani kutoka OpenStreetMap
+    th = ข้อมูลแผนที่จาก OpenStreetMap
+    tr = OpenStreetMap'ten harita verileri
+    uk = Картографічні дані з OpenStreetMap
+    vi = Dữ liệu bản đồ từ OpenStreetMap
+    zh-Hans = 地图数据来自OpenStreetMap
+    zh-Hant = 來自 OpenStreetMap 的地圖數據