Bug 1053193 - cropped beginning silence from a11y sound files. Updated the way a11y sounds are played by the accessibility component.
Bug 943825 - [Gaia] Mount/Unmount SD card
Merge pull request #23046 from yzen/bug-1053193

Bug 1053193 - cropped beginning silence from a11y sound files. Updated t...
Merge pull request #16981 from ian-liu/settings/bug943825_mount/unmount_sdcard

Bug 943825 - [Gaia] Mount/Unmount SD card, r=@alive, arthur
Bug 1056469 - [Rocketbar] Use template literals for app chrome r=kgrandon
Merge pull request #23128 from KevinGrandon/bug_1056469_rocketbar_use_template_literals

Bug 1056469 - [Rocketbar] Use template literals for app chrome
Bug 1042730 - Use better icons when bookmarking and searching places r=daleharvey
Bug 938177 - Browser Settings Moved to System Settings; r=arthurcc,evelyn,timdream

Creates and improves UI for changing System Browser settings in Settings
app. Adds various data clearing buttons and moves default search engine
location.