Added UI app.

MangaReader.WinUI/Resources/Fonts.xaml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:vm="using:MangaReader.WinUI.ViewModels">
+
+    <FontFamily x:Key="PoppinsRegular">ms-appx:///Assets/Fonts/Poppins-Regular.ttf#Poppins Regular</FontFamily>
+    <FontFamily x:Key="PoppinsMedium">ms-appx:///Assets/Fonts/Poppins-Medium.ttf#Poppins Medium</FontFamily>
+    <FontFamily x:Key="PoppinsSemiBold">ms-appx:///Assets/Fonts/Poppins-SemiBold.ttf#Poppins SemiBold</FontFamily>
+
+</ResourceDictionary>