fixing the aspect ration warping of the prod login page

Signed-off-by: Ash Evans <[email protected]>

Author: aevo98765

src/app/login/githublogin.css

@@ -5,7 +5,7 @@ a {
 
 .login-page-background {
   background-image: url('../../../public/InstructLab-Background-Image.png');
-  background-size: 100% 100%;
+  background-size: cover;
   background-position: center;
   background-repeat: no-repeat;