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/pages/pathUtils.ts

@@ -31,7 +31,7 @@ export const joinPathComponent = (path: Path): string => path.pathname + path.se
 
 export const withSearchParam = <T extends Record<string, string>>(
   path: string,
-  searchParam: T
+  searchParam: T,
 ): string => {
   const params = new URLSearchParams(searchParam);
 
@@ -133,7 +133,7 @@ export const getSpaceSearchPath = (spaceIdOrAlias: string): string => {
 export const getSpaceRoomPath = (
   spaceIdOrAlias: string,
   roomIdOrAlias: string,
-  eventId?: string
+  eventId?: string,
 ): string => {
   const params = {
     spaceIdOrAlias: encodeURIComponent(spaceIdOrAlias),