Make channel log level settable from output view

[gjsjohnmurray]

This PR closes #162262

Choosing the option takes you directly to the second quickpick presented by the existing Developer: Set Log Level... command:

Like all entries on this overflow menu the user can promote the new option to be a button:

For channels that don't support log levels the option gets disabled rather than hidden, so it matches the behaviour of existing overflow options, and so when shown as a button the layout doesn't change as you scroll through channels:

[gjsjohnmurray]

/assign @sandy081

Pinging @mjbvz as author of the related issue. This PR doesn't achieve all that was requested, but I hope it helps.

[sandy081]

@gjsjohnmurray Thanks for contributing the PR. I liked the new behaviour. I have one feedback

• I would prefer to open the log level options inline - meaning - next to the configure log level action. It can be a menu or sub menu based on the location of the action.

[gjsjohnmurray]

@sandy081 as a (sub)menu I don't think we can achieve both functions of the quickpick, in which you can set the log level for the channel until the next restart and the default level that will apply after restarts (the double checkmark on the right-hand end of a level).

Assuming the (sub)menu item picked will get a single checkmark and set the level only for the current session, maybe the initial button / overflow menu item should be captioned "Set Current Log Level..." rather than how they appear in my previous screenshots ("Configure Log Level...").

[sandy081]

That's right, we would need two actions

1. Set Log Level (Session or Window)
2. Set Log Level (Default)

I would make first action that can be able to made a primary action and second action just a secondary action.

[gjsjohnmurray]

@sandy081 this is ready for your review. It now uses a submenu, but instead of adding a second submenu for setting the channel's default level I added an option at the end of the submenu which updates the default to match the current choice.

This option is only enabled when the default differs from the current level.

[the-coder-o]

If that's the case, you would need to find all occurrences in the code where createInstance is called with the channelId and remove that argument. If the channelId was providing necessary context for the SetLogLevelAction, you'll need to find a new way to provide that context or reconsider the removal of the channelId parameter.

[gjsjohnmurray]

As with other action buttons, this one can be hidden, causing the option to move to the ... menu.