chore: upgrade i18next 26, prettier 3, fontsource-variable, domhandler 6, lint-staged 17

- i18next 23->26 + react-i18next 15->17
- prettier 2->3, reformat all files
- replace @fontsource/inter with @fontsource-variable/inter 5, update import path
- domhandler 5->6 (aligns with transitive deps)
- lint-staged 16->17

src/app/components/message/content/FileContent.tsx

@@ -95,7 +95,7 @@ export function ReadTextFile({ body, mimeType, url, encInfo, renderViewer }: Rea
       const text = fileContent.text();
       setTextViewer(true);
       return text;
-    }, [mx, useAuthentication, mimeType, encInfo, url])
+    }, [mx, useAuthentication, mimeType, encInfo, url]),
   );
 
   return (
@@ -184,7 +184,7 @@ export function ReadPdfFile({ body, mimeType, url, encInfo, renderViewer }: Read
         : await downloadMedia(mediaUrl);
       setPdfViewer(true);
       return URL.createObjectURL(fileContent);
-    }, [mx, url, useAuthentication, mimeType, encInfo])
+    }, [mx, url, useAuthentication, mimeType, encInfo]),
   );
 
   return (
@@ -264,7 +264,7 @@ export function DownloadFile({ body, mimeType, url, info, encInfo }: DownloadFil
       const fileURL = URL.createObjectURL(fileContent);
       FileSaver.saveAs(fileURL, body);
       return fileURL;
-    }, [mx, url, useAuthentication, mimeType, encInfo, body])
+    }, [mx, url, useAuthentication, mimeType, encInfo, body]),
   );
 
   return downloadState.status === AsyncStatus.Error ? (
@@ -309,5 +309,5 @@ export const FileContent = as<'div', FileContentProps>(
       {mimeType === 'application/pdf' && renderAsPdfFile()}
       {children}
     </Box>
-  )
+  ),
 );