feat: add site header (#2)

* tests: setup initial infra for end to end tests

* tests: rework end to end host

* tests: remove need for bang operator

* tests: correct header component tests

* docs: add README.md to blog directory with instructions on setting up local dev environment with and without docker

* docs: update non-developer run command

* feat: finish layout of header

* feat: add favicon

* tests: setup test coverage

* chore: update workflow with missing playwright step

* chore: add install command

src/Blog/Components/Layout/Header.razor

@@ -0,0 +1,13 @@
+@namespace Blog.Components
+
+<header class="container">
+  <div class="title-container">
+    <a href="/">
+      <h1>journal</h1>
+    </a>
+  </div>
+  <div class="author-container">
+    <span>by</span>
+    <img src="https://github.com/StevanFreeborn.png" alt="Stevan Freeborn" />
+  </div>
+</header>