Fix: Unable to hold top right corner in FileManager (#5248)

Close: #5247

frontend/apps/filemanager/filemanager.lua

@@ -104,6 +104,7 @@ function FileManager:init()
         padding_right = Size.padding.large,
         padding_bottom = 0,
         callback = nil, -- top right corner callback handled by gesture manager
+        hold_callback = nil, -- top right corner hold_callback handled by gesture manager
     }
 
     self.path_text = TextWidget:new{

frontend/ui/widget/iconbutton.lua

@@ -122,7 +122,7 @@ function IconButton:onHoldIconButton()
         self:onInput(self.hold_input)
     elseif type(self.hold_input_func) == "function" then
         self:onInput(self.hold_input_func())
-    end
+    elseif self.hold_callback == nil then return end
     return true
 end