Fail to syntax highlight

[SpyPower]

There's a problem with syntax highlight on these examples:
The following example needs an additional quotation(") mark after the example in order to enable the syntax highlight for the rest of the config file.

map "$uri:$args" $proxy_cache_key {
  default $uri$is_args$args;
  "~^/get-file/file:.*XXX.*view.*" "$uri?sth=$anArgID?timestamp=$arg_timestamp";
}

and another example which makes the dolar sign to be orange as if it is a string.

log_format bak_cache '$proxy_protocol_addr - $upstream_cache_status [$time_local] '
'"$request" $status $body_bytes_sent '
'"$http_referer" "$http_user_agent"';

Required information for this issue:

• Your VS Code Version: 1.78.2
• Your OS Version: Pop!_OS 22.04 LTS
• Is this extension running on VS Code Remote or https://vscode.dev: No

Steps to Reproduce:

1.Copy pasta the following in an nginx config file

map "$uri:$args" $proxy_cache_key {
  default $uri$is_args$args;
  "~^/get-file/file:.*XXX.*view.*" "$uri?sth=$anArgID?timestamp=$arg_timestamp";
}

2. Add a new server block after the map. The rest of the config file is treated as string, not highlighted.