Revert "Bug 985012 - [Camera][Madai] Control buttons are disabled when we change from Video mode to camera mode and take a picture"

This reverts commit 7e41934ab5c851f7a5ae22f89ae93db71e806a9d.
Merge pull request #17536 from wilsonpage/bug/985058

Bug 985058 - [Camera] [Mozilla][UX] 1.4 Viewfinder Assets not to spec
Bug 985012 - [Camera][Madai] Control buttons are disabled when we change from Video mode to camera mode and take a picture
Merge pull request #17542 from dmarcos/bug985012

Bug 985012 - [Camera][Madai] Control buttons are disabled when we change...
Bug 971070: implement preview gallery for Camera app [hyunacho] r=djf,jdarcangelo

resolve merge conflicts [djf]

simplify thumbnail creation code [djf]

fix error in storage library [djf]

Fixed unit tests for Bug 971090 [jdarcangelo]
(cherry picked from commit 9ae9b275beca6f17d2f31bf638b9e384d8260376)

change event in confirm controller and cleanup in preview controller [hyunacho]
(cherry picked from commit 06bd371196c81125aa9974684a93ac9cc8d69016)

fix confirm controller test [djf]

fix review nits [djf]

when discarding state on blur in secure mode, also erase thumbnail [djf]
Merge pull request #17552 from davidflanagan/bug971090

Bug971090: implement the preview gallery feature for the Camera app r=djf,justindarc
Bug 948263 - [User Story] Warning when the battery is low while recording a video