fix(app): correct the French translation (#6004)

The French locale was machine-translated word by word, without context:
"Back" became "Dos" (the body part), CI "Checks" became "Chèques" (bank
cheques), "Starting" became "Départ", "Connecting" became "De liaison",
and many interpolation placeholders were glued to neighboring words
("{{label}}copié", "Daemonindisponible").

Review every client-owned French string against its English source and
call site, apply one glossary across the file, and use French
typography (’, …, non-breaking space before high punctuation).

Add regression tests for the reported labels and for placeholders glued
to French words.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

packages/app/src/i18n/resources.test.ts

@@ -183,6 +183,23 @@ describe("translation resources", () => {
     expect(ko.desktop.daemon.status.notRunning).toBe("실행 중이 아님");
   });
 
+  it("uses the French navigation and Git meanings for reported labels", () => {
+    expect(fr.common.back).toBe("Retour");
+    expect(fr.common.actions.back).toBe("Retour");
+    expect(fr.common.actions.copy).toBe("Copier");
+    expect(fr.common.states.starting).toBe("Démarrage…");
+    expect(fr.common.connectionStatus.connecting).toBe("Connexion…");
+    expect(fr.workspace.git.pr.sections.checks).toBe("Vérifications");
+    expect(fr.sidebar.display.show.checks).toBe("Vérifications");
+  });
+
+  it("separates French interpolation placeholders from neighboring words", () => {
+    const glued = Object.entries(flattenStrings(fr)).filter(([, value]) =>
+      /\p{L}\{\{|\}\}\p{L}{2,}/u.test(value),
+    );
+    expect(glued).toEqual([]);
+  });
+
   it("labels the immediate add-to-chat action without an ellipsis", () => {
     expect(en.workspace.fileActions.addToChat).toBe("Add to chat");
   });

packages/app/src/i18n/resources/plugin-settings.ts

@@ -163,7 +163,7 @@ export const pluginSettings = {
       globalEnabled: "Plugins activés",
       globalDisabled: "Plugins désactivés",
     },
-    removeConfirmTitle: "Supprimer {{id}} ?",
+    removeConfirmTitle: "Supprimer {{id}} ?",
     removeConfirmMessage: "La configuration sera supprimée. Le dossier source ne sera pas effacé.",
     states: {
       offlineTitle: "L’hôte des plugins est hors ligne",