[FEATURE] Fixed file manager and adjusted starting display (#5)

Co-authored-by: Dunemask <dunemask@gmail.com>
Reviewed-on: https://gitea.dunemask.dev/elysium/minecluster/pulls/5

src/util/theme.js

@@ -5,7 +5,7 @@ const themeOptions = {
   palette: {
     mode: "light",
     primary: {
-      main: "rgba(109,216,144,255)",
+      main: "#29985c",
     },
     secondary: {
       main: "#f50057",