docs: Fix code snippets syntax highlighting & some refactoring

src/common/RichTable/mockData.js

@@ -0,0 +1,119 @@
+const columns = [
+    {
+        header: "Name",
+        accessorKey: "name",
+    },
+    {
+        header: "Surname",
+        accessorKey: "surname",
+    },
+    {
+        header: "Age",
+        accessorKey: "age",
+    },
+    {
+        header: "Phone",
+        accessorKey: "phone",
+    },
+];
+
+const data = [
+    {
+        name: "John",
+        surname: "Coltrane",
+        age: 30,
+        phone: "123456789",
+    },
+    {
+        name: "Jane",
+        surname: "Doe",
+        age: 25,
+        phone: "987654321",
+    },
+    {
+        name: "Alice",
+        surname: "Smith",
+        age: 35,
+        phone: "123456789",
+    },
+    {
+        name: "Bob",
+        surname: "Smith",
+        age: 40,
+        phone: "987654321",
+    },
+    {
+        name: "Charlie",
+        surname: "Brown",
+        age: 45,
+        phone: "123456789",
+    },
+    {
+        name: "Daisy",
+        surname: "Brown",
+        age: 50,
+        phone: "987654321",
+    },
+    {
+        name: "Eve",
+        surname: "Johnson",
+        age: 55,
+        phone: "123456789",
+    },
+    {
+        name: "Frank",
+        surname: "Johnson",
+        age: 60,
+        phone: "987654321",
+    },
+    {
+        name: "Grace",
+        surname: "Williams",
+        age: 65,
+        phone: "123456789",
+    },
+    {
+        name: "Henry",
+        surname: "Williams",
+        age: 70,
+        phone: "987654321",
+    },
+    {
+        name: "Ivy",
+        surname: "Brown",
+        age: 75,
+        phone: "123456789",
+    },
+    {
+        name: "Jack",
+        surname: "Brown",
+        age: 80,
+        phone: "987654321",
+    },
+    {
+        name: "Kelly",
+        surname: "Johnson",
+        age: 85,
+        phone: "123456789",
+    },
+    {
+        name: "Liam",
+        surname: "Johnson",
+        age: 90,
+        phone: "987654321",
+    },
+    {
+        name: "Mia",
+        surname: "Williams",
+        age: 95,
+        phone: "123456789",
+    },
+    {
+        name: "Nathan",
+        surname: "Williams",
+        age: 100,
+        phone: "987654321",
+    },
+];
+
+export { columns, data };