Merge commit '23af6e9b52af07ab2104514a69a69bc9995c8e30'
Merge commit '97544ad39b4a0c156ca28bb91ccd95ef96df8284'
Merge commit '661f7b1a4133dcb894ee72db533096cfcabe95b0'
add sign out icon
Merge commit '07b310399f94a3f048212b00bf22246da3a3e891'