Fix routing issues

Author: AlexandrLi

src/components/App/App.tsx

@@ -19,7 +19,7 @@ function App() {
           <Route path=":id" element={<PageOrder />} />
         </Route>
         <Route path="admin/products" element={<PageProductImport />} />
-        <Route path="product-form">
+        <Route path="admin/product-form">
           <Route index element={<PageProductForm />} />
           <Route path=":id" element={<PageProductForm />} />
         </Route>

src/components/pages/admin/PageProductImport/PageProductImport.tsx

@@ -19,7 +19,7 @@ export default function PageProductImport() {
           variant="contained"
           sx={{ alignSelf: "end" }}
           component={Link}
-          to={"../product-form"}
+          to={"/admin/product-form"}
         >
           Create product
         </Button>

src/components/pages/admin/PageProductImport/components/ProductsTable.tsx

@@ -47,7 +47,7 @@ export default function ProductsTable() {
                   size="small"
                   color="primary"
                   component={Link}
-                  to={`../product-form/${product.id}`}
+                  to={`/admin/product-form/${product.id}`}
                 >
                   Manage
                 </Button>