Revert the naming to common welcomeLogo

Kiwix/SplashScreenKiwix.storyboard

@@ -4,6 +4,7 @@
     <dependencies>
         <deployment identifier="iOS"/>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22685"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
@@ -16,10 +17,11 @@
                         <rect key="frame" x="0.0" y="0.0" width="393" height="852"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="kiwix-full" adjustsImageSizeForAccessibilityContentSizeCategory="YES" translatesAutoresizingMaskIntoConstraints="NO" id="gOr-0c-AYj" userLabel="KiwixLogo">
+                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="welcomeLogo" adjustsImageSizeForAccessibilityContentSizeCategory="YES" translatesAutoresizingMaskIntoConstraints="NO" id="gOr-0c-AYj" userLabel="KiwixLogo">
                                 <rect key="frame" x="75" y="400" width="243" height="52"/>
                             </imageView>
                         </subviews>
+                        <viewLayoutGuide key="safeArea" id="Eeh-VA-lHV"/>
                         <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                         <constraints>
                             <constraint firstItem="gOr-0c-AYj" firstAttribute="width" relation="lessThanOrEqual" secondItem="Ze5-6b-2t3" secondAttribute="width" multiplier="0.618" id="G29-6Y-oWb"/>
@@ -35,7 +37,7 @@
         </scene>
     </scenes>
     <resources>
-        <image name="kiwix-full" width="256" height="52"/>
+        <image name="welcomeLogo" width="256" height="52"/>
         <systemColor name="systemBackgroundColor">
             <color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
         </systemColor>

Model/Brand.swift

@@ -46,7 +46,7 @@ enum AppType {
 enum Brand {
     static let appName: String = Config.value(for: .displayName) ?? "Kiwix"
     static let appStoreId: String = Config.value(for: .appStoreID) ?? "id997079563"
-    static let loadingLogoImage: String = "kiwix-full"
+    static let loadingLogoImage: String = "welcomeLogo"
     static let aboutText: String = Config.value(for: .aboutText) ?? "settings.about.description".localized
     static let aboutWebsite: String = Config.value(for: .aboutWebsite) ?? "https://www.kiwix.org"