feat: Add form ui example

Test css grid system for form fields.

source/style/modules/ui/_form_module.scss

@@ -0,0 +1,33 @@
+#form body {
+	margin: 0;
+	background-color: #808080;
+}
+
+#head {
+	// display: flex;
+}
+
+h1 {
+	margin: 0;
+}
+
+#grid {
+	display: grid;
+	gap: 8px;
+	grid-template-columns: repeat(4, 1fr);
+	grid-auto-rows: minmax(64px, auto);
+}
+
+#grid>div {
+	display: flex;
+	align-items: center;
+	justify-content: center;
+	width: 100%;
+	height: 100%;
+	background-color: aquamarine;
+}
+
+#grid>div:first-child {
+	grid-column: 1 / 3;
+	background-color: violet;
+}