apps: Fix buggy toggling with version_info.show_instructions.
apps: Fix buggy toggling with version_info.show_instructions.

We were doing the seemingly innocent
.toggle(version_info.show_instructions) to show the instructions if
and only if show_instructions was true.  However, our data structures
that should have been false didn't set a value, and `.toggle` with no
arguments just flips the state, rather than unconditionally hiding.

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