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/BackRouteHandler.tsx

@@ -24,7 +24,7 @@ export function BackRouteHandler({ children }: BackRouteHandlerProps) {
           caseSensitive: true,
           end: false,
         },
-        location.pathname
+        location.pathname,
       )
     ) {
       navigate(getHomePath());
@@ -37,7 +37,7 @@ export function BackRouteHandler({ children }: BackRouteHandlerProps) {
           caseSensitive: true,
           end: false,
         },
-        location.pathname
+        location.pathname,
       )
     ) {
       navigate(getDirectPath());
@@ -49,7 +49,7 @@ export function BackRouteHandler({ children }: BackRouteHandlerProps) {
         caseSensitive: true,
         end: false,
       },
-      location.pathname
+      location.pathname,
     );
     const encodedSpaceIdOrAlias = spaceMatch?.params.spaceIdOrAlias;
     const decodedSpaceIdOrAlias =
@@ -66,7 +66,7 @@ export function BackRouteHandler({ children }: BackRouteHandlerProps) {
           caseSensitive: true,
           end: false,
         },
-        location.pathname
+        location.pathname,
       )
     ) {
       navigate(getExplorePath());
@@ -79,7 +79,7 @@ export function BackRouteHandler({ children }: BackRouteHandlerProps) {
           caseSensitive: true,
           end: false,
         },
-        location.pathname
+        location.pathname,
       )
     ) {
       navigate(getInboxPath());