i18n: fix remaining French text in Palette section

- 2 unwrapped multiline descriptions: popout and navigate list
- 4 pre-existing keys with French EN values: shortcuts, tab toggle, type name
- All palette text now properly i18n with English translations

frontend/locales/en.json

@@ -811,7 +811,7 @@
   "help.7bcbb2e3": "Sidebar resizing",
   "help.62308f96": "<kbd>Ctrl+Shift+Space</kbd>: File palette (search by title)",
   "help.6d547397": "<kbd>Tab</kbd>: Toggle between file mode and command mode",
-  "help.3cf370b1": "Type a file name to find it quickly. The search uses the <code>/api/suggest</code> API for instant suggestions. Press <kbd>Enter</kbd> to open the selected file.",
+  "help.3cf370b1": "Type a file name to find it quickly. The search uses the <code>/api/suggest</code> API for instant suggestions. Press Enter to open the selected file.",
   "help.2a2e5b0f": "⌨️ Keyboard shortcuts",
   "help.096367af": "Visual indicators",
   "help.2dad2bfd": "Automatic save",
@@ -1170,5 +1170,7 @@
   "help.pal_toggle_light_dark": "Toggle light/dark",
   "help.pal_open_this_guide": "Open this guide",
   "help.pal_open___select": "Open / select",
-  "help.pal_close_the_palette": "Close the palette"
+  "help.pal_close_the_palette": "Close the palette",
+  "help.pal_popout_desc": "Open the document in a detached window",
+  "help.pal_move_desc": "Navigate the list"
 }

frontend/locales/fr.json

@@ -1170,5 +1170,7 @@
   "help.pal_toggle_light_dark": "Bascule clair/sombre",
   "help.pal_open_this_guide": "Ouvre ce guide",
   "help.pal_open___select": "Ouvrir/sélectionner",
-  "help.pal_close_the_palette": "Fermer la palette"
+  "help.pal_close_the_palette": "Fermer la palette",
+  "help.pal_popout_desc": "Ouvre le document dans une fenêtre détachée",
+  "help.pal_move_desc": "Se déplacer dans la liste"
 }