fix(frontend): align Settings desktop labels on French (#78)

UX decision (carnet #78): the human UI of IdeA is French by default,
uniform per surface — proper nouns and technical acronyms (URL, LAN,
IP/CIDR, HTTPS, API, CLI…) stay as-is. Settings mixed English (AI
Profiles, Deployment) with French (Appareils, frozen by UX for #77).

Renames the Settings menu/nav, the Profils IA and Déploiement panels
(titles, actions, states, help text) to French, per the carnet's
exhaustive list. Updates the affected tests accordingly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

frontend/src/features/projects/ProjectsView.tsx

@@ -401,9 +401,10 @@ export function ProjectsView() {
     },
     {
       id: "settings",
-      label: "Settings",
+      label: "Paramètres",
       // One entry per section (#68). The entries name sections and mark the open
-      // one; closing lives in the view ("Close Settings"), so no label alternates.
+      // one; closing lives in the view ("Fermer les paramètres"), so no label
+      // alternates.
       items: SETTINGS_SECTIONS.map((section) => ({
         id: section,
         label: SETTINGS_SECTION_LABEL[section],