pills: Add `flex-wrap: wrap` to pill container for all pills.
pills: Add `flex-wrap: wrap` to pill container for all pills.

Fixes #10059.
In 66df4e3e84c93bacee626e77073e6c740e1b7fac,
`display: inline-flex` was added to `.pill-container` but
`flex-wrap: wrap` was missing which forced overflow pills to be on
one line and made the pill text overflow vertically. This was not
observed in composebox pills as `.pm_recipient .pill-container`
already had a `flex-wrap: wrap` rule which has been removed in this
commit to avoid duplication.

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