* grafana/master:
  fix(explore/logs) not collapsing whitespace (#15737)
  Refactoring / fixing password hint PR #15868
  chore: Move sidemenu out of context service and use the logic we have in the router already for hiding the sidemenu
  Fix deduplication results displaying wrong data (#15755)
  Revert "Fix Datasource Update to no User/Password"
  fix imageurl in notification test
  changed all rems to pixels in defaults and template, changed back root font size
  Make password hint configurable from settings/defaults.ini
  changed root font to 100%(default 16px), changed font-size from px to rem, updated rem sizes in template and default.ts files, removed display classes and variables since not used, removed lead class and variables since not usedremoved serif font since not used and probably never should be used
  fix: Update test snapshot
  fix: Logo goes Home instead of toggling side menu #15482
  Fix: #14706 Incorrect index pattern padding in alerting queries
  Removed commented code
  Fixed alias in Cloudwatch Expressions