mypy: set SubSuiteList to inherit from typed List.
mypy: set SubSuiteList to inherit from typed List.

Modified by tabbott to add the `type: ignore`, which is basically
required by the monkey-patching we're doing here.

shubhamdhama/zulip,zulip/zulip,hackerkid/zulip,jackrzhang/zulip,brainwane/zulip,showell/zulip,tommyip/zulip,mahim97/zulip,eeshangarg/zulip,rishig/zulip,andersk/zulip,hackerkid/zulip,dhcrzf/zulip,brainwane/zulip,brainwane/zulip,synicalsyntax/zulip,andersk/zulip,mahim97/zulip,shubhamdhama/zulip,rishig/zulip,kou/zulip,kou/zulip,andersk/zulip,andersk/zulip,tommyip/zulip,brainwane/zulip,synicalsyntax/zulip,rht/zulip,kou/zulip,punchagan/zulip,jackrzhang/zulip,punchagan/zulip,rishig/zulip,dhcrzf/zulip,showell/zulip,mahim97/zulip,jackrzhang/zulip,eeshangarg/zulip,eeshangarg/zulip,andersk/zulip,jackrzhang/zulip,showell/zulip,andersk/zulip,rishig/zulip,rishig/zulip,kou/zulip,timabbott/zulip,eeshangarg/zulip,rht/zulip,timabbott/zulip,showell/zulip,mahim97/zulip,hackerkid/zulip,zulip/zulip,brainwane/zulip,eeshangarg/zulip,timabbott/zulip,punchagan/zulip,rht/zulip,dhcrzf/zulip,zulip/zulip,hackerkid/zulip,tommyip/zulip,kou/zulip,brainwane/zulip,tommyip/zulip,shubhamdhama/zulip,jackrzhang/zulip,zulip/zulip,rht/zulip,dhcrzf/zulip,eeshangarg/zulip,punchagan/zulip,punchagan/zulip,shubhamdhama/zulip,kou/zulip,zulip/zulip,eeshangarg/zulip,synicalsyntax/zulip,zulip/zulip,synicalsyntax/zulip,hackerkid/zulip,rht/zulip,punchagan/zulip,shubhamdhama/zulip,timabbott/zulip,shubhamdhama/zulip,showell/zulip,dhcrzf/zulip,tommyip/zulip,dhcrzf/zulip,timabbott/zulip,rishig/zulip,hackerkid/zulip,showell/zulip,kou/zulip,zulip/zulip,timabbott/zulip,brainwane/zulip,andersk/zulip,tommyip/zulip,hackerkid/zulip,jackrzhang/zulip,mahim97/zulip,rht/zulip,synicalsyntax/zulip,timabbott/zulip,showell/zulip,synicalsyntax/zulip,rishig/zulip,jackrzhang/zulip,shubhamdhama/zulip,dhcrzf/zulip,punchagan/zulip,synicalsyntax/zulip,mahim97/zulip,rht/zulip,tommyip/zulip