Remove backticks from JSON values in .env file

Updated the .env file to remove unnecessary backticks from JSON array and object values for ALLOWED_USER_EMAILS, ALLOWED_USER_DOMAINS, ALTERNATIVE_REDIRECT_URLS, and USAGE_LIMITS. This change ensures proper parsing of these environment variables.

.env

@@ -85,11 +85,11 @@ PUBLIC_LLM_ROUTER_ALIAS_ID=omni
 OPENID_CONFIG=
 MESSAGES_BEFORE_LOGIN=# how many messages a user can send in a conversation before having to login. set to 0 to force login right away
 # if it's defined, only these emails will be allowed to use login
-ALLOWED_USER_EMAILS=`[]` 
+ALLOWED_USER_EMAILS=[]
 # If it's defined, users with emails matching these domains will also be allowed to use login
-ALLOWED_USER_DOMAINS=`[]`
+ALLOWED_USER_DOMAINS=[]
 # valid alternative redirect URLs for OAuth, used for HuggingChat apps
-ALTERNATIVE_REDIRECT_URLS=`[]` 
+ALTERNATIVE_REDIRECT_URLS=[] 
 ### Cookies
 # name of the cookie used to store the session
 COOKIE_NAME=hf-chat
@@ -131,7 +131,7 @@ ENABLE_DATA_EXPORT=true
 #   messagesPerMinute: number, # how many messages per minute
 #   tools: number # how many tools
 # }
-USAGE_LIMITS=`{}`
+USAGE_LIMITS={}
 
 ### HuggingFace specific ###
 ## Feature flag & admin settings