docs: Fix code snippets syntax highlighting & some refactoring

src/common/RichTable/RichTable.md

@@ -4,132 +4,14 @@ Rich Table is a table component based on
 [Tanstack React Table](https://tanstack.com/table/). It adds some features to
 the table component, such as:
 
--   **Pagination**: The table can be paginated.
--   **Sorting**: The table can be sorted by columns.
--   **Row Expansion**: The table rows can be expanded. (To be implemented)
+- **Pagination**: The table can be paginated.
+- **Sorting**: The table can be sorted by columns.
+- **Row Expansion**: The table rows can be expanded. (To be implemented)
 
 ### Example
 
-```js
-import RichTable from "./RichTable";
-
-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",
-    },
-];
+```jsx
+import { columns, data } from "./mockData";
 
 <RichTable columns={columns} data={data} withPagination />;
 ```