minor update on buttons and QR code to look better on iPad

Session/Home/New Conversation/InviteAFriendScreen.swift

@@ -12,7 +12,6 @@ struct InviteAFriendScreen: View {
     private let accountId: String = getUserHexEncodedPublicKey()
     
     static private let cornerRadius: CGFloat = 13
-    static private let buttonWidth: CGFloat = 160
     
     var body: some View {
         ZStack(alignment: .center) {
@@ -58,7 +57,7 @@ struct InviteAFriendScreen: View {
                             .font(.system(size: Values.mediumFontSize))
                             .foregroundColor(themeColor: .textPrimary)
                             .frame(
-                                maxWidth: Self.buttonWidth,
+                                maxWidth: .infinity,
                                 minHeight: Values.mediumButtonHeight,
                                 alignment: .center
                             )
@@ -80,7 +79,7 @@ struct InviteAFriendScreen: View {
                             .font(.system(size: Values.mediumFontSize))
                             .foregroundColor(themeColor: .textPrimary)
                             .frame(
-                                maxWidth: Self.buttonWidth,
+                                maxWidth: .infinity,
                                 minHeight: Values.mediumButtonHeight,
                                 alignment: .center
                             )

Session/Settings/RecoveryPasswordScreen.swift

@@ -14,7 +14,7 @@ struct RecoveryPasswordScreen: View {
     
     static private let cornerRadius: CGFloat = 13
     static private let backgroundCornerRadius: CGFloat = 17
-    static private let buttonWidth: CGFloat = 130
+    static private let buttonWidth: CGFloat = UIDevice.current.isIPad ? Values.iPadButtonWidth : 130
     
     public init() throws {
         self.mnemonic = try Identity.mnemonic()
@@ -136,7 +136,7 @@ struct RecoveryPasswordScreen: View {
                                             .font(.system(size: Values.verySmallFontSize))
                                             .foregroundColor(themeColor: .textPrimary)
                                             .frame(
-                                                maxWidth: Self.buttonWidth,
+                                                maxWidth: .infinity,
                                                 minHeight: Values.mediumSmallButtonHeight,
                                                 alignment: .center
                                             )
@@ -157,7 +157,7 @@ struct RecoveryPasswordScreen: View {
                                             .font(.system(size: Values.verySmallFontSize))
                                             .foregroundColor(themeColor: .textPrimary)
                                             .frame(
-                                                maxWidth: Self.buttonWidth,
+                                                maxWidth: .infinity,
                                                 minHeight: Values.mediumSmallButtonHeight,
                                                 alignment: .center
                                             )

Session/Utilities/QRCode.swift

@@ -72,6 +72,7 @@ struct QRCodeView: View {
     static private var logoSize: CGFloat = 66
     
     var body: some View {
+        ZStack(alignment: .center) {
             ZStack(alignment: .center) {
                 RoundedRectangle(cornerRadius: Self.cornerRadius)
                     .fill(themeColor: backgroundThemeColor)
@@ -109,5 +110,11 @@ struct QRCodeView: View {
                     )
                 }
             }
+            .frame(
+                maxWidth: 400,
+                maxHeight: 400
+            )
+        }
+        .frame(maxWidth: .infinity)
     }
 }