MDL-42602 remove incorrect snapshot from \core\event\user_loggedin

* all snapshots in events should match the DB data
* the snapshot from user table will not be necessary most probably
MDL-42402 EditPDF: CSS fix for hover on drop down menus

Also required a fix for the comment search window because it was picking up the same styles.
Merge branch 'MDL-42402-master-fix3' of git://github.com/damyon/moodle
Merge branch '42629-26-r2' of git://github.com/samhemelryk/moodle
MDL-40244 forms: added setType() for groupinfo in forum and wiki
Merge branch 'w45_MDL-42602_m26_userloginevent' of https://github.com/skodak/moodle
MDL-40975 Blocks: Move most block actions into the block menu
MDL-40975 Theme: Tidy up block icons to line up in columns
MDL-40975 Theme: Standardise size of icons in headings
MDL-42564 Theme: Add new dropdown icons
MDL-40975 Course: Change the activity drag icon to prevent icon flash
MDL-40975 Course: Change which actions are in the menu and which are outside it
MDL-40975 Course: Move drag/drop to start of the line
MDL-40975 ActionMenu: Remove background color when menu is active
MDL-40975 JavaScript: Standardise the location of the activity spinner
MDL-40975 Course: Hide commands when editing titles
MDL-40975 JavaScript: Make drag/drop respond to a single click as well as a drag
MDL-40975 Course: Add back JavaScript drag/drop for bootstrap on mobile
MDL-40975 Course: Add aria label for dragdrop
MDL-40975 Course: Set the show/hide activity toggle