Bug 1019783 - Always display IMEI codes for all SIM slots r=Rik

(cherry picked from commit c329a67bafe60032820ab64b52c07c22eeff114e)

Conflicts:
	apps/communications/dialer/test/unit/dialer_test.js
Merge pull request #18168 from julienw/994622-ignore-network-errors

Bug 994622 - [Build] Ignore network error when trying to fetch the node_...
(cherry picked from commit 2f947be0ca2a64aa142c0d2e8305cc6d41f9121f)
Merge pull request #21546 from julienw/1033472-improve-node-modules-dependencies

Bug 1033472 - Gaia linter, gaia-build tests aren't using NODE_MODULES_GI...
(cherry picked from commit 10f141af83815940d1bd2b00a05c4f2e0965a0e3)
Bug 1036532 - [Flame][v1.4][Gaia::SMS] There is a horizontal line on “SIM1/2” word and "..." under “Send” word in the message send button when set a SIM card as default outgoing message. r=arnau
Merge pull request #21611 from julienw/1036532-fix-images-hd

Bug 1036532 - [Flame][v1.4][Gaia::SMS] There is a horizontal line on “SI...
Merge pull request #21606 from julienw/1033472-v1.4-improve-node-modules-dependencies

Bug 1033472 - v1.4 improve node modules dependencies a=tests
Bug 984274 - add required permission for mochitest. r=fabrice
Merge pull request #21633 from schien/bug984274-v1.4

Bug 984274 - add required permission for mochitest. r=fabrice
Bug 1028253 - Camera App memory regression in FFOS -- optimized sound resources
Merge pull request #21593 from justindarc/bug1028253-v1.4

Bug 1028253 - Camera App memory regression in FFOS