fix: performance optimization (#358)

* refactor: add alt to social login image

* fix: add omission attribute to button tag

* fix: add meta tag

* fix: add robots text file for seo

index.html

@@ -6,6 +6,8 @@
     <!--    <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">-->
 
     <meta content="width=device-width, initial-scale=1.0" name="viewport"/>
+    <meta name="description" content="일정과 자산 관리를 한 번에 도와주는 애플리케이션 핀더펜" />
+    <meta name=”robots” content=”nofollow” />
     <meta name="apple-mobile-web-app-title" content="FinThePen"/>
     <meta name="apple-mobile-web-app-capable" content="yes"/>
     <meta name="apple-mobile-web-app-status-bar-style" content="#735bf2"/>

public/robots.txt

@@ -0,0 +1,4 @@
+User-agent: *
+Disallow: /src/app/*
+Disallow: /src/assets/*
+Disallow: /src/mocks/*

src/pages/Start/components/SocialLogin/SocialLogin.tsx

@@ -29,8 +29,9 @@ function SocialLogin({ type }: SocialLoginProps) {
         sx={{
           p: 0,
         }}
+        aria-label={`social_${type}`}
       >
-        <img src={SOCIAL_LOGIN[type].image} width={40} />
+        <img src={SOCIAL_LOGIN[type].image} width={40} alt={`social_${type}`} />
       </Button>
     </Box>
   );