list_render: Change alphabetic sorting to be case insensitive.
list_render: Change alphabetic sorting to be case insensitive.

The current behavior treats uppercase and lowercase characters
differently resulting in incorrect sorting of lists.
This change fixes that and makes the alphabetic sorting of columns
case insensitive.

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