Add menu item for "Browse gopls feature documentation"

[adonovan]

The gopls.doc.features code action (requires gopls at tip) opens the gopls manual in a browser. However, this code action appears only when the "command-." key is pressed to open a menu of miscellaneous code actions. It should be a more prominent command in the UI: directly available in the command palette and the toplevel context menu.

xtools$ gopls codeaction ./gopls/main.go 
command	"Browse gopls feature documentation" [gopls.doc.features]
command	"Browse documentation for package main" [source.doc]
xtools$ gopls codeaction -exec -kind=gopls ./gopls/main.go 
(opens browser)

Also: we observed that this code action didn't appear at all for one user (@hyangah). We should investigate.

[rszyma]

Quite opposite request from me - is there currently a way to disable "gopls.doc.features" action from code actions menu at all? I find it quite disruptive to my workflow. I couldn't find anything in any docs I could find (https://github.com/golang/tools/blob/master/gopls/doc/settings.md
and https://github.com/golang/vscode-go/wiki/settings#settings-for-gopls), but after taking glance at code in golang/tools/gopls it definitely feels like it could be disabled

[your-diary]

Quite opposite request from me - is there currently a way to disable "gopls.doc.features" action from code actions menu at all?

Any updates?

This recent change is extremely annoying.

I don't understand why the option has the higher priority than organize imports:

[h9jiang]

I don't understand why the option has the higher priority than organize imports:

Hi your-diary@, are you using vscode-go or vim-go. If you are using vscode-go, I think there should be something I can do to re-arrange the code actions returned from gopls. If this is vim-go, I suggest you create a feature request/bug report to golang/go under gopls and ask for re-arranging or disable code actions.

I think in VSCode-GO, gopls.add_import is put under quick fix and the gopls.doc.features is under more actions

cc @findleyr @adonovan