Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/f3fbaf953e31
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #18110 from gasolin/issue-993948

Bug 993948 - [Settings] refactor to identify root panel scope inside of ..., r=arthur

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https://hg.mozilla.org/integration/gaia-central/rev/baeaecf53047
Author: gasolin <gasolin@gmail.com>
Desc: Bug 993948 - [Settings] refactor to identify root panel scope inside of settings.js

- refactor to inline root panel
- move getSupportedLanguages to utils
- Not load telephony on non-phone device
- fix send_feedback asyncStorage dependency
- move keydown listener in nextTick
- refactor getSupportedLanguages with immediately-invoked function expressions (IIFE)
Bumping manifests a=b2g-bump