Finished styles and pagination of contacts page

frontend/src/App.js

@@ -2,8 +2,24 @@ import React from "react";
 import Routes from "./routes";
 import "dotenv/config";
 
+import { createMuiTheme, ThemeProvider } from "@material-ui/core/styles";
+import { ptBR } from "@material-ui/core/locale";
+
+const theme = createMuiTheme(
+	{
+		palette: {
+			primary: { main: "#1976d2" },
+		},
+	},
+	ptBR
+);
+
 const App = () => {
-	return <Routes />;
+	return (
+		<ThemeProvider theme={theme}>
+			<Routes />
+		</ThemeProvider>
+	);
 };
 
 export default App;