feat: setting up mess of thymeleaf.

had problems with th:fragment, getting errors
Caused by: ognl.OgnlException: source is null for getProperty(null, "text")

now will try to style the page as if it's static page, and then add
thymeleaf things

13-testimonials-grid-section/build.sbt

@@ -10,6 +10,6 @@ lazy val root = (project in file("."))
     libraryDependencies ++= Seq(
       "com.lihaoyi" %% "cask" % "0.9.1",
       "com.lihaoyi" %% "mainargs" % "0.5.0",
-      "org.thymeleaf" % "thymeleaf" % "3.1.1.RELEASE"
+      "org.thymeleaf" % "thymeleaf" % "3.1.1.RELEASE",
     )
   )