default covers updated

Author: Farzin

src/Blogifier.Admin/wwwroot/img/cover.png

@@ -24,7 +24,7 @@ public class Constants
         public static string DummyEmail = "dummy@blog.com";
 
         public static string DefaultAvatar = "img/avatar.png";
-        public static string DefaultCover = "img/cover.png";
+        public static string DefaultCover = "img/cover.jpg";
         public static string DefaultLogo = "img/logo-sm.png";
 
         public static string AvatarDataImage = "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 250 250' width='250' height='250'%3E%3Crect width='250' height='250' fill='%23622aff'%3E%3C/rect%3E%3Ctext x='50%' y='53%' dominant-baseline='middle' text-anchor='middle' font-family='Arial, sans-serif' font-size='128px' fill='%23ffffff'%3E{0}%3C/text%3E%3C/svg%3E";

src/Blogifier.Shared/Models/Constants.cs

@@ -6,7 +6,7 @@
    Layout = "layouts/_main.cshtml";
    PostModel postModel = (PostModel)Model;
    var post = postModel.Post;
-   string cover = $"{Url.Content("~/")}{postModel.Post.Cover}";
+   string cover = postModel.Post.Cover;
    var catUrl = Url.Content("~/categories");
 }
 

src/Blogifier/Blog.db

@@ -17,7 +17,7 @@
                     <section class="col-lg-7">
                         <figure class="featured-cover" aria-hidden="true">
                             <a href="~/posts/@item.Slug" class="featured-cover-link" tabindex="-1">
-                                <img class="featured-cover-img" alt="POST_TITLE" src="~/@item.Cover">
+                                <img class="featured-cover-img" alt="POST_TITLE" src="@item.Cover">
                             </a>
                             <figcaption class="visually-hidden">@item.Title</figcaption>
                         </figure>

src/Blogifier/Views/Themes/standard/Post.cshtml

@@ -16,7 +16,7 @@
         <div class="col">
             <article class="post-grid d-flex flex-column">
                 <figure class="post-grid-cover">
-                    <img class="post-grid-img" src="~/@post.Cover" alt="@post.Title">
+                    <img class="post-grid-img" src="@post.Cover" alt="@post.Title">
                 </figure>
                 @if(post.Categories != null)
                 {

src/Blogifier/Views/Themes/standard/post/featured.cshtml

@@ -14,7 +14,7 @@
     {
         <article class="post-list d-flex">
             <figure class="post-list-cover">
-                <img class="post-list-img" src="~/@post.Cover" alt="@post.Title">
+                <img class="post-list-img" src="@post.Cover" alt="@post.Title">
             </figure>
             <section class="post-list-details">
                 <h2 class="post-list-title">