[FEATURE] Mutable Servers & Edit UI (#8)

Co-authored-by: Dunemask <dunemask@gmail.com>
Reviewed-on: https://gitea.dunemask.dev/elysium/minecluster/pulls/8

src/components/server-options/BackupHostOption.jsx

@@ -1,11 +1,12 @@
 import TextField from "@mui/material/TextField";
 export default function BackupHostOption(props) {
-  const { onChange } = props;
+  const { value, onChange } = props;
 
   return (
     <TextField
       label="Backup Host"
       onChange={onChange}
+      value={value}
       helperText="Example: s3.mydomain.com"
       FormHelperTextProps={{ sx: { ml: 0 } }}
       required