fix(onboarding): cleaned up/imporved images

Closes #5829

ui/app/AppLayouts/Chat/panels/EmptyChatPanel.qml

@@ -20,7 +20,7 @@ Item {
         id: walkieTalkieImage
         anchors.horizontalCenter: parent.horizontalCenter
         anchors.verticalCenter: parent.verticalCenter
-        source: Style.png("onboarding/chat@2x")
+        source: Style.png("chat/chat@2x")
     }
 
     Item {

ui/app/AppLayouts/Onboarding/views/KeysMainView.qml

@@ -39,12 +39,12 @@ OnboardingBasePage {
 
         Image {
             id: keysImg
+            width: 160
+            height: 160
             anchors.horizontalCenter: parent.horizontalCenter
             anchors.top: parent.top
             fillMode: Image.PreserveAspectFit
             source: Style.png("onboarding/keys")
-            width: 160
-            height: 160
             mipmap: true
         }
 
@@ -192,6 +192,8 @@ OnboardingBasePage {
             }
             PropertyChanges {
                 target: keysImg
+                width: 257
+                height: 257
                 source: Style.png("onboarding/seed-phrase")
             }
             PropertyChanges {

ui/app/AppLayouts/Onboarding/views/TouchIDAuthView.qml

@@ -39,13 +39,13 @@ OnboardingBasePage {
         }
         Image {
             id: keysImg
+            width: 188
+            height: 185
             anchors.horizontalCenter: parent.horizontalCenter
             anchors.top: parent.top
             fillMode: Image.PreserveAspectFit
             antialiasing: true
             source: Style.png("onboarding/fingerprint@2x")
-            width: 160
-            height: 160
             mipmap: true
         }
 

ui/app/mainui/SplashScreen.qml

@@ -19,9 +19,10 @@ Item {
 
     AnimatedImage {
         id: splashLogo
+        width: 127.88
+        height: 127.88
         anchors.centerIn: parent
-        scale: 0.5
-        source: Style.gif("status_splash")
+        source: Style.gif("status_splash_"+(Style.current.name))
     }
 
     // NOTE: keep it if we will decide to switch on lottie

ui/imports/assets/png/onboarding/next.svg

@@ -1,3 +0,0 @@
-<svg width="9" height="16" viewBox="0 0 9 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path fill-rule="evenodd" clip-rule="evenodd" d="M8.70719 8.71434L1.69578 15.7079C1.3074 16.0953 0.681196 16.0988 0.291074 15.7097C-0.0963472 15.3232 -0.0907033 14.6911 0.292809 14.3085L6.61881 7.99859L0.292809 1.68865C-0.0955705 1.30126 -0.0990483 0.676638 0.291074 0.287507C0.678495 -0.0989301 1.31227 -0.0933004 1.69578 0.289237L8.70719 7.28284C8.93181 7.50689 9.02769 7.81029 8.99313 8.10159C8.97295 8.32613 8.8772 8.54476 8.70719 8.71434Z" fill="#4360DF"/>
-</svg>