apply new control panel styling from sri
remove o_dropdown_menu_right (looks unused)
remove o_dropdown_inline (this is a regression for small screens, apparently we would like to have this possibility on smaller screens. This does not break mobile usage but Mobile styling is still a bit weird though)
fix systray activitymenu in mobile (issue was introduced with 29731b40)
fix subdropdown flickering (before this commit, parent dropdown was in absolute positioning, making the position hook generate flicker, now it it fixed from the beginning)
Part-of: odoo/odoo#73311
Bruno Boi
164cb86d2d