fix(i18n): sync de.json keys with en.json — add 26 missing keys to en.json and all language files

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

frontend/translations/da.json

@@ -195,6 +195,7 @@
   "common.confirm": "Confirm",
   "common.copied": "Copied!",
   "common.copy": "Copy",
+  "common.create": "Create",
   "common.created": "Created",
   "common.date": "Date",
   "common.delete": "Delete",
@@ -202,6 +203,7 @@
   "common.details": "Details",
   "common.disabled": "Disabled",
   "common.download": "Download",
+  "common.duplicate": "Duplicate",
   "common.edit": "Edit",
   "common.enabled": "Enabled",
   "common.error": "Error",
@@ -218,6 +220,7 @@
   "common.page": "Page",
   "common.pending": "Pending",
   "common.prev_page": "Previous page",
+  "common.previous": "Previous",
   "common.processing": "Processing",
   "common.refresh": "Refresh",
   "common.reset": "Reset",
@@ -228,7 +231,9 @@
   "common.select_placeholder": "— select —",
   "common.size": "Size",
   "common.status": "Status",
+  "common.submit": "Submit",
   "common.success": "Success",
+  "common.tags": "Tags",
   "common.type": "Type",
   "common.updated": "Updated",
   "common.upload": "Upload",
@@ -236,6 +241,8 @@
   "common.warning": "Warning",
   "common.yes": "Yes",
   "cookie.accept": "Got it",
+  "cookie.learn_more": "Learn more",
+  "cookie.message": "This website uses cookies to improve your experience.",
   "cookie.notice": "DocuElevate uses only essential session cookies required for authentication and service operation. No tracking or analytics cookies are used.",
   "cookie.notice_label": "Cookie notice",
   "cookie.policy_link": "Cookie Policy",
@@ -398,6 +405,8 @@
   "files.upload_modal_close": "Close upload progress",
   "files.upload_modal_header": "Uploading Files",
   "files.uploaded": "Uploaded",
+  "footer.about": "About",
+  "footer.attribution": "Attribution",
   "footer.attributions": "Attributions",
   "footer.cookies": "Cookies",
   "footer.copyright": "DocuElevate {year}",
@@ -577,6 +586,7 @@
   "integrations.username_label": "Username",
   "language.bg": "Български",
   "language.ca": "Català",
+  "language.change_success": "Language changed to {language}",
   "language.changed": "Sproget blev ændret til {language}",
   "language.cs": "Čeština",
   "language.da": "Dansk",
@@ -602,6 +612,7 @@
   "language.ro": "Română",
   "language.ru": "Русский",
   "language.selector": "Dansk",
+  "language.selector_label": "Select language",
   "language.sk": "Slovenčina",
   "language.sl": "Slovenščina",
   "language.sv": "Svenska",
@@ -610,9 +621,15 @@
   "language.zh": "中文",
   "nav.about": "About",
   "nav.admin": "Admin",
+  "nav.admin.audit_logs": "Audit Logs",
+  "nav.admin.backups": "Backups",
+  "nav.admin.plans": "Plans",
+  "nav.admin.scheduled_jobs": "Scheduled Jobs",
+  "nav.admin.users": "Users",
   "nav.admin_actions": "Admin actions",
   "nav.admin_menu": "Admin menu",
   "nav.api_docs": "API Docs",
+  "nav.api_tokens": "API Tokens",
   "nav.backup_restore": "Backup & Restore",
   "nav.credentials": "Credentials",
   "nav.dark_mode": "Dark Mode",
@@ -623,25 +640,34 @@
   "nav.files": "Files",
   "nav.help": "Help",
   "nav.help_center": "Help Center",
+  "nav.imap": "Email Import",
   "nav.integrations": "Integrations",
   "nav.light_mode": "Light Mode",
+  "nav.login": "Log In",
+  "nav.logout": "Log Out",
   "nav.main_navigation": "Main navigation",
   "nav.notifications": "Notifications",
   "nav.open_main_menu": "Open main menu",
   "nav.pipelines": "Pipelines",
   "nav.plan_designer": "Plan Designer",
   "nav.pricing": "Pricing",
+  "nav.profile": "Profile",
+  "nav.queue": "Queue",
   "nav.queue_monitor": "Queue Monitor",
   "nav.scheduled_jobs": "Scheduled Jobs",
   "nav.search": "Search",
   "nav.settings": "Settings",
+  "nav.shared_links": "Shared Links",
+  "nav.signup": "Sign Up",
   "nav.similarity": "Similarity",
   "nav.skip_to_content": "Skip to main content",
   "nav.status": "Status",
+  "nav.subscription": "Subscription",
   "nav.toggle_dark_mode": "Toggle dark mode",
   "nav.toggle_nav": "Toggle navigation menu",
   "nav.upload": "Upload",
   "nav.users": "Users",
+  "nav.version": "Version Info",
   "notifications.filter_all": "All",
   "notifications.filter_read": "Read only",
   "notifications.filter_unread": "Unread only",