feat(app): polish workspace tabs and changes

Size tabs from rendered labels and switch to horizontal overflow once minimum click targets are reached, keeping the add-tab action adjacent until it must remain fixed.

Make Changes an always-expanded document with an optional desktop navigation tree, keep Git actions in their platform-owned headers, remove pinned and inline split shortcuts, and place review tabs beside Changes.

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

@@ -605,8 +605,6 @@ export const fr: TranslationResources = {
         pullRequest: "Demande de fusion",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
-        pinTarget: "Épingler",
-        unpinTarget: "Détacher",
       },
       explorer: {
         open: "Ouvrir l'explorateur",
@@ -885,14 +883,12 @@ export const fr: TranslationResources = {
         switchToUnified: "Passer au diff unifié",
         switchToSplit: "Passer au diff côte à côte",
         showTreeView: "Afficher l'arborescence des dossiers",
-        showFlatView: "Afficher la liste de fichiers à plat",
+        hideTreeView: "Masquer l'arborescence des dossiers",
         options: "Options du diff",
         hideWhitespace: "Masquer les espaces",
         showWhitespace: "Afficher les espaces",
         scrollLongLines: "Faire défiler les longues lignes",
         wrapLongLines: "Enroulez les longues lignes",
-        collapseAll: "Réduire tous les fichiers",
-        expandAll: "Développer tous les fichiers",
         collapseAllFolders: "Réduire tous les dossiers",
         expandAllFolders: "Développer tous les dossiers",
         refreshing: "Rafraîchissant",