feat(user-perf): add ui user-perf + dotfile filter

- add resource kind filter (file, folder, drive) in shared section (localStorage stored)
- add user preferences serverside store
- add client side dotfile filter (show/hide dotfiles) (user perf stored, default: dotfiles are shown)
  for security trashed dotfile are always displayed

  protection added: if a folder has only hidden items, a notification invite user to display it
  if a user rename or create a hidden item, a notification tells it to user

frontend/static/locales/en.json

@@ -57,7 +57,17 @@
     "manageAccess": "Manage access",
     "notifySent": "Notification sent.",
     "passwordLinks": "Password-protected links",
-    "publicLinks": "Public links"
+    "publicLinks": "Public links",
+    "filter": {
+      "button": "Kinds",
+      "title": "Filter by kind",
+      "files": "Files",
+      "folders": "Folders",
+      "drives": "Drives",
+      "emptyTitle": "No shares match the current filter",
+      "emptyHint": "Adjust the kind filter or reset it to the default (Files + Folders).",
+      "reset": "Reset filter"
+    }
   },
   "nav": {
     "files": "Files",
@@ -77,6 +87,8 @@
   "photos": {
     "empty_state": "No photos yet",
     "empty_hint": "Upload images or videos to see them here",
+    "empty_hidden": "{{n}} photo(s) hidden by your dotfile preference",
+    "empty_hidden_hint": "Turn off \"Hide dotfiles\" in your profile to see them.",
     "items_selected": "selected",
     "view_daily": "Day",
     "view_monthly": "Month",
@@ -508,7 +520,15 @@
     "uploading": "Uploading…",
     "uploading_file": "Uploading {{name}}…",
     "uploading_n": "Uploading {{done}}/{{total}} files…",
-    "view": "View"
+    "view": "View",
+    "empty_hidden_title": "{{n}} hidden item(s) in this folder",
+    "empty_hidden_hint": "Files whose name starts with '.' are hidden. Toggle the setting to see them.",
+    "show_hidden": "Show hidden files",
+    "upload_dotfile_hidden": "{{n}} file(s) uploaded but hidden by your dotfile preference.",
+    "rename_dotfile_hidden": "Renamed to '{{name}}' — now hidden by your preference.",
+    "new_folder_dotfile_hidden": "Created folder '{{name}}' — hidden by your dotfile preference.",
+    "dotfiles_hidden_toast": "Dotfiles hidden",
+    "dotfiles_shown_toast": "Dotfiles shown"
   },
   "dialogs": {
     "rename_folder": "Rename folder",
@@ -728,6 +748,8 @@
     "accessed": "Accessed",
     "empty_state": "No recent files",
     "empty_hint": "Files you open will appear here",
+    "empty_hidden_state": "{{n}} recent item(s) hidden by your dotfile preference",
+    "empty_hidden_hint": "Turn off \"Hide dotfiles\" in your profile to see them.",
     "loadMore": "Load more",
     "confirm_clear": "Clear your recent items?"
   },
@@ -1164,6 +1186,7 @@
     "family_name": "Last name",
     "notify_on_share": "Email me when someone shares with me",
     "notify_on_share_hint": "When unchecked, shares still appear in your account — you just won't get an email about them.",
+    "hide_dotfiles": "Hide files whose name starts with a dot (.env, .git, …)",
     "save_profile": "Save changes",
     "profile_saved": "Profile updated",
     "profile_no_changes": "No changes to save.",
@@ -1525,6 +1548,11 @@
   "view": {
     "grid": "Grid view",
     "label": "View options",
-    "list": "List view"
+    "list": "List view",
+    "hide_dotfiles": "Hide hidden files",
+    "show_dotfiles": "Show hidden files"
+  },
+  "preferences": {
+    "save_failed": "Couldn't save your preference. Please try again."
   }
 }