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/es.ts

@@ -605,8 +605,6 @@ export const es: TranslationResources = {
         pullRequest: "Solicitud de extracción",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
-        pinTarget: "Fijar",
-        unpinTarget: "Desfijar",
       },
       explorer: {
         open: "Explorador abierto",
@@ -886,14 +884,12 @@ export const es: TranslationResources = {
         switchToUnified: "Cambiar a diferencia unificada",
         switchToSplit: "Cambiar a diferencia lado a lado",
         showTreeView: "Mostrar árbol de carpetas",
-        showFlatView: "Mostrar lista plana de archivos",
+        hideTreeView: "Ocultar árbol de carpetas",
         options: "Opciones de diferencia",
         hideWhitespace: "Ocultar espacios en blanco",
         showWhitespace: "Mostrar espacios en blanco",
         scrollLongLines: "Desplazarse por largas filas",
         wrapLongLines: "Envolver largas filas",
-        collapseAll: "Contraer todos los archivos",
-        expandAll: "Expandir todos los archivos",
         collapseAllFolders: "Contraer todas las carpetas",
         expandAllFolders: "Expandir todas las carpetas",
         refreshing: "Refrescante",