settings: Improve set of icons for 'organization settings'.
settings: Improve set of icons for 'organization settings'.

Fixes #11280.
showell/zulip,hackerkid/zulip,showell/zulip,eeshangarg/zulip,showell/zulip,rishig/zulip,eeshangarg/zulip,zulip/zulip,rishig/zulip,tommyip/zulip,rht/zulip,eeshangarg/zulip,tommyip/zulip,hackerkid/zulip,timabbott/zulip,punchagan/zulip,eeshangarg/zulip,showell/zulip,brainwane/zulip,rht/zulip,rht/zulip,kou/zulip,punchagan/zulip,hackerkid/zulip,andersk/zulip,andersk/zulip,shubhamdhama/zulip,synicalsyntax/zulip,rht/zulip,brainwane/zulip,eeshangarg/zulip,punchagan/zulip,shubhamdhama/zulip,brainwane/zulip,kou/zulip,zulip/zulip,synicalsyntax/zulip,eeshangarg/zulip,timabbott/zulip,tommyip/zulip,shubhamdhama/zulip,rishig/zulip,tommyip/zulip,zulip/zulip,shubhamdhama/zulip,synicalsyntax/zulip,hackerkid/zulip,kou/zulip,shubhamdhama/zulip,eeshangarg/zulip,tommyip/zulip,timabbott/zulip,kou/zulip,rishig/zulip,tommyip/zulip,zulip/zulip,shubhamdhama/zulip,synicalsyntax/zulip,hackerkid/zulip,kou/zulip,timabbott/zulip,timabbott/zulip,rishig/zulip,punchagan/zulip,punchagan/zulip,tommyip/zulip,brainwane/zulip,showell/zulip,brainwane/zulip,kou/zulip,timabbott/zulip,rht/zulip,rht/zulip,synicalsyntax/zulip,rishig/zulip,punchagan/zulip,showell/zulip,synicalsyntax/zulip,rht/zulip,andersk/zulip,andersk/zulip,shubhamdhama/zulip,zulip/zulip,timabbott/zulip,hackerkid/zulip,andersk/zulip,andersk/zulip,hackerkid/zulip,kou/zulip,showell/zulip,zulip/zulip,rishig/zulip,zulip/zulip,punchagan/zulip,brainwane/zulip,synicalsyntax/zulip,brainwane/zulip,andersk/zulip