Implement a different way of adding keybind in lore reader to mark book as read/unread.

diff --git a/Librarian.lua b/Librarian.lua
index 407b760..83164c5 100644
--- a/Librarian.lua
+++ b/Librarian.lua
@@ -108,13 +108,6 @@ function Librarian:Initialize(...)
 end

 function Librarian:AddLoreReaderUnreadToggle()
-    local readerKeybinds
-    if LORE_READER.keybindStripDescriptor then
-        readerKeybinds = LORE_READER.keybindStripDescriptor
-    else
-        readerKeybinds = LORE_READER.PCKeybindStripDescriptor
-    end
-
     local function IsSameBook(book, title)
         if book.title then
             return book.title == title
@@ -124,22 +117,27 @@ function Librarian:AddLoreReaderUnreadToggle()
         return bookTitle == title
     end

-    if readerKeybinds then
-        local toggleKeybind =
+    self.loreReaderKeybinds =
+    {
         {
             alignment = KEYBIND_STRIP_ALIGN_RIGHT,
             name = function()
                 local book = self:FindBook(self.lastShownBookId)
-                if not book or (book.unread and IsSameBook(book, LORE_READER.titleText)) then
-                    if self.settings.showUnreadIndicatorInReader then
-                        self.loreReaderUnreadIndicator:SetHidden(false)
+                if not book or not IsSameBook(book, LORE_READER.titleText) then
+                    self.loreReaderUnreadIndicator:SetHidden(true)
+                    return ""
+                else
+                    if book.unread then
+                        if self.settings.showUnreadIndicatorInReader then
+                            self.loreReaderUnreadIndicator:SetHidden(false)
+                        else
+                            self.loreReaderUnreadIndicator:SetHidden(true)
+                        end
+                        return GetString(LIBRARIAN_MARK_READ)
                     else
                         self.loreReaderUnreadIndicator:SetHidden(true)
+                        return GetString(LIBRARIAN_MARK_UNREAD)
                     end
-                    return GetString(LIBRARIAN_MARK_READ)
-                else
-                    self.loreReaderUnreadIndicator:SetHidden(true)
-                    return GetString(LIBRARIAN_MARK_UNREAD)
                 end
             end,
             visible = function()
@@ -151,15 +149,36 @@ function Librarian:AddLoreReaderUnreadToggle()
                 local book = self:FindBook(self.lastShownBookId)
                 if book and IsSameBook(book, LORE_READER.titleText) then
                     self:ToggleReadBook(book)
-                    KEYBIND_STRIP:UpdateKeybindButtonGroup(readerKeybinds)
+                    KEYBIND_STRIP:UpdateKeybindButtonGroup(self.loreReaderKeybinds)
                 end
             end
         }
-        table.insert(readerKeybinds, toggleKeybind)
+    }
+
+    local function OnSceneStateChange(oldState, newState)
+        -- Let's not add the keybind at all if this book is not registered in librarian
+        -- This way, other addon (like Librarium) can override the same keybind for something else
+        local book = self:FindBook(self.lastShownBookId)
+        if not book or not IsSameBook(book, LORE_READER.titleText) then
+            self.loreReaderUnreadIndicator:SetHidden(true)
+            return
+        end

-        self.loreReaderKeybinds = readerKeybinds
+        if newState == SCENE_SHOWING then
+            KEYBIND_STRIP:AddKeybindButtonGroup(self.loreReaderKeybinds)
+        elseif newState == SCENE_HIDDEN then
+            KEYBIND_STRIP:RemoveKeybindButtonGroup(self.loreReaderKeybinds)
+        end
     end

+    -- This list of scene should be the same as the list in esoui/ingame/lorereader/lorereader.lua in its Initialize function
+    LORE_READER_INVENTORY_SCENE:RegisterCallback("StateChange", OnSceneStateChange)
+    LORE_READER_LORE_LIBRARY_SCENE:RegisterCallback("StateChange", OnSceneStateChange)
+    LORE_READER_INTERACTION_SCENE:RegisterCallback("StateChange", OnSceneStateChange)
+    GAMEPAD_LORE_READER_INVENTORY_SCENE:RegisterCallback("StateChange", OnSceneStateChange)
+    GAMEPAD_LORE_READER_LORE_LIBRARY_SCENE:RegisterCallback("StateChange", OnSceneStateChange)
+    GAMEPAD_LORE_READER_INTERACTION_SCENE:RegisterCallback("StateChange", OnSceneStateChange)
+
     self.loreReaderUnreadIndicator = WINDOW_MANAGER:CreateControl("LibrarianLoreReaderUnreadIndicator", ZO_LoreReaderBookContainer, CT_TEXTURE)
     self.loreReaderUnreadIndicator:SetAnchor(TOPLEFT, ZO_LoreReaderBookContainerFirstPage, TOPLEFT, -32, 3)
     self.loreReaderUnreadIndicator:SetAlpha(self.settings.unreadIndicatorTransparency)
@@ -783,9 +802,11 @@ function Librarian.OnShowBook(eventCode, title, body, medium, showTitle, bookId)
     local book = { title = title, body = body, medium = medium, showTitle = showTitle, bookId = bookId }
     LIBRARIAN:AddBook(book, true)
     LIBRARIAN.lastShownBookId = bookId
-    if LIBRARIAN.loreReaderKeybinds then
-        KEYBIND_STRIP:UpdateKeybindButtonGroup(LIBRARIAN.loreReaderKeybinds)
-    end
+
+    -- I don't know why, but if I don't update the keybinds here when opening a book,
+    -- the keybind I add after doesn't work
+    KEYBIND_STRIP:UpdateCurrentKeybindButtonGroups()
+    KEYBIND_STRIP:AddKeybindButtonGroup(LIBRARIAN.loreReaderKeybinds)
 end

 function Librarian.OnMouseEnterRow(control)