File Created Date (#1434)

* Capture date when Kavita creates a MangaFile so we can show the date on the UI.

* On startup, exit early for migration directory if it's a fresh install and we have migrations to run but no settings stored yet.

* Blur summaries should apply when there isn't any read more collapsable

* Fixed custom theme files not loading.

* Cleaned up the logic for displaying the manga file date

API/Data/Migrations/20220814134725_MangaFileCreatedDate.cs

@@ -0,0 +1,27 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace API.Data.Migrations
+{
+    public partial class MangaFileCreatedDate : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<DateTime>(
+                name: "Created",
+                table: "MangaFile",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified));
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Created",
+                table: "MangaFile");
+        }
+    }
+}

API/Data/Migrations/DataContextModelSnapshot.cs

@@ -525,6 +525,9 @@ namespace API.Data.Migrations
                     b.Property<int>("ChapterId")
                         .HasColumnType("INTEGER");
 
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("TEXT");
+
                     b.Property<string>("FilePath")
                         .HasColumnType("TEXT");