Bug 874043 - airplane mode allert when sending sms

fixes

cleaning

cleaning

lint fix

test fix

lint error fix
(cherry picked from commit 747f412b370039569e37161e43185427ad20fbb8)
Bug 870069 - [SMS][MMS] Multi-Recipient: Group Participants view - r=gnarf

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

Closes gh-9970
(cherry picked from commit 5d808ed57f6a52ea4c976c55a409b8c4b65ae14f)