Tab context menus should offer "Mute all tabs"

[bsclifton]

Originally proposed in #8320, right clicking (or cmd + clicking) inside the tab area should bring up a context menu.

This should include "Mute All Tabs":

This should always mute all of the tabs. It was attempted in the PR, but @philkloose noticed that the quick implementation I did toggled the mute state (instead of muting all). When all are muted, we may consider changing the menu to "Unmute all"

cc: @bradleyrichter for more details 😄

[bsclifton]

For reference, here is the implemenation I attempted with #8320

 +    {
 +      label: locale.translation('muteTabs'),
 +      click: () => {
 +        windowActions.muteAllAudio(generateMuteFrameList(framePropsList, true))
 +      }
 +    },

[bsclifton]

@philkloose I assigned this to myself so that I can be available to help you 😄 Let me know if you have any questions or if you'd rather check a different issue out instead

[bsclifton]

removing milestone since the other fix was not merged