Add support for .gifv (closes #13) and fixes loading media IDs

pages/embed.go

@@ -0,0 +1,16 @@
+package pages
+
+import (
+	"codeberg.org/video-prize-ranch/rimgo/utils"
+	"github.com/gofiber/fiber/v2"
+)
+
+func HandleEmbed(c *fiber.Ctx) error {
+	utils.SetHeaders(c)
+	c.Set("Cache-Control", "public,max-age=31557600")
+	c.Set("Content-Security-Policy", "default-src 'none'; media-src 'self'; style-src 'self'; img-src 'self'; font-src 'self'; block-all-mixed-content")
+
+	return c.Render("embed", fiber.Map{
+		"id": c.Params("postID"),
+	})
+}