fix: Syntax-issue in .env-file

.env.example

@@ -34,14 +34,14 @@ NG_USE_FEEDBACK_PROMPT=true
 NG_USE_REGION_PER_LOCALE=true
 
 # Default language
-NG_LOCALE_LANGUAGE='en'
-# Default language direction (Possible values: 'ltr' or 'rtl')
-NG_LOCALE_DIR='ltr'
-# Available language options (Comma-separated list like: '<language-code>:<language-name>,en:English,*:Other...')
-# To disable the language-switcher on the main-page, or when using `NG_USE_REGION_PER_LOCALE=true`, set this to: ''
-NG_LOCALE_ALTERNATIVES='ar:العربية,en:English,nl:Nederlands,*:Other...'
+NG_LOCALE_LANGUAGE="en"
+# Default language direction (Possible values: "ltr" or "rtl")
+NG_LOCALE_DIR="ltr"
+# Available language options (Comma-separated list like: "<language-code>:<language-name>,en:English,*:Other...")
+# To disable the language-switcher on the main-page, or when using `NG_USE_REGION_PER_LOCALE=true`, set this to: ""
+NG_LOCALE_ALTERNATIVES="ar:العربية,en:English,nl:Nederlands,*:Other..."
 # An (optional) explanation below the list of available language options (i.e "* Using Google Translate")
-NG_LOCALE_ALTERNATIVES_EXPLANATION='* Using Google Translate'
+NG_LOCALE_ALTERNATIVES_EXPLANATION="* Using Google Translate"
 
 # Define the logo used on the main/front-page by an absolute URL (starting with https://)
 TXT_APP_LOGO_URL=