Reorganize project structure and fix SQLite usage

internal/server/templates/index.html

@@ -0,0 +1,36 @@
+<header>
+    <h1>Kill me please</h1>
+</header>
+<nav>
+    <a href="order">New</a>
+</nav>
+<main>
+    <table>
+        <tr>
+            <th></th>
+            <th>Name</th>
+            <th>Surname</th>
+            <th>Phone</th>
+            <th>Location</th>
+            <th>Date</th>
+            <th>Accepted</th>
+            <th>Status</th>
+            <th>Paid</th>
+            <th>Cakes</th>
+        </tr>
+        {{range .}}
+        <tr>
+            <th><a href="/order/{{.ID}}">edit</a></th>
+            <th>{{.Name}}</th>
+            <th>{{.Surname}}</th>
+            <th>{{.Phone}}</th>
+            <th>{{.Location}}</th>
+            <th>{{.Date.Format "2006-01-02"}}</th>
+            <th>{{.Accepted.Format "2006-01-02"}}</th>
+            <th>{{.Status}}</th>
+            <th>{{.Paid}}</th>
+            <th>{{range .Cakes}} {{.Name}} {{.Amount}} {{end}}</th>
+        </tr>
+        {{end}}
+    </table>
+</main>