removed linkedin from main dashboard & added missing from quiz page

Author: Lina0Elman

nextstep-frontend/src/components/LeftBar.tsx

@@ -119,7 +119,7 @@ const LeftBar: React.FC = () => {
             alt="NextStep"
             className="logo-text"
             sx={{
-              height: collapsed ? 40 : 60, // Reduced logo size
+              height: collapsed ? 40 : 80, 
               cursor: "pointer",
               opacity: 1,
               transform: collapsed ? "scale(0.8)" : "scale(1)",

nextstep-frontend/src/pages/MainDashboard.tsx

@@ -903,19 +903,6 @@ const MainDashboard: React.FC = () => {
                       </Box>
                     ) : (
                       <Stack spacing={2}>
-                        <Button
-                          variant="contained"
-                          startIcon={<LinkedIn />}
-                          fullWidth
-                          sx={{
-                            bgcolor: "#0077B5",
-                            "&:hover": { bgcolor: "#005582" },
-                            transition: "all 0.3s ease",
-                            "&:active": { transform: "scale(0.98)" },
-                          }}
-                        >
-                          Connect LinkedIn
-                        </Button>
                         <Button
                           variant="outlined"
                           startIcon={<GitHub />}