Amethyst 0.40.6: BugFixes for volume controls and others

- BugFix for Volume Controls affecting other apps

- BugFix to avoid blinking the URL while loading images

- BugFix for drawing the border of the image without content

- BugFix on calculating the Zap amount without a Zap Event

- BugFix for video save to gallery tool

- BugFix videos of one page leaking to the next page

Download:

- Play Edition with Translations: https://github.com/vitorpamplona/amethyst/releases/download/v0.40.6/amethyst-googleplay-universal-v0.40.6.apk

- F-Droid Edition without Translations: https://github.com/vitorpamplona/amethyst/releases/download/v0.40.6/amethyst-fdroid-universal-v0.40.6.apk