website: fix account management (#29258)

* website: fix developer mode tutorial

* Fix http cors issue when setup developer mode with remix URL

* website: fix account management

* Fix initialize Clef command

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Co-authored-by: Miles Chen <mileschen@MilesdeMacBook-Pro.local>

docs/fundamentals/account-management.md

@@ -10,7 +10,7 @@ Geth uses an external signer called [Clef](/docs/tools/clef/introduction) to man
 The first time Clef is used it needs to be initialized with a master seed that unlocks Clef's secure vault and a path where the vault should be located. Clef will use the vault to store passwords for keystores, javascript auto-signing rules and hashes of rule files. To initialize Clef, pass a vault path to `clef init`, for example to store it in a new directory inside `/home/user/go-ethereum`:
 
 ```sh
-clef init /home/user/go-ethereum/clefdata
+clef init --configdir /home/user/go-ethereum/clefdata
 ```
 
 It is extremely important to remember the master seed and keep it secure. It allows access to the accounts under Clef's management.