Docker, DEV failed with language es_ES

[zehnBE]

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Describe the bug
In the DEV Branch, nightscout does not start if the Language is Spanish (es_ES)

To Reproduce
Steps to reproduce the behavior:

1. Choose DEV Branch
2. Set language=es in config
3. start docker container
4. See error

Expected behavior
Node.js v22.16.0
API_SECRET has 71 bits of entropy

<anonymous_script>:707
"virtAsstLaunch":"¿Qué quieres saber de Nightscout?"
^

SyntaxError: Expected ',' or '}' after property value in JSON at position 45950 (line 707 column 5)
at JSON.parse ()
at Function.loadLocalization (/opt/app/lib/language.js:153:33)
at Object. (/opt/app/lib/server/server.js:33:10)
at Module._compile (node:internal/modules/cjs/loader:1730:14)
at Object..js (node:internal/modules/cjs/loader:1895:10)
at Module.load (node:internal/modules/cjs/loader:1465:32)
at Function._load (node:internal/modules/cjs/loader:1282:12)
at TracingChannel.traceSync (node:diagnostics_channel:322:14)
at wrapModuleLoad (node:internal/modules/cjs/loader:235:24)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:171:5)

Screenshots
If applicable, add screenshots to help explain your problem.

Your setup information

• Nightscout DEV
• "LANGUAGE=es",
• "NODE_VERSION=16.16.0",
• "version": "15.0.4",

Additional context
Looks for unescapted/wrong charset for es_ES on
"virtAsstLaunch":"¿Qué quieres saber de Nightscout?"

The Master Version works fine.

[AndyLow91]

#8447 addresses this