Adopt problems panel to use views and view containers

[sandy081]

Adopt problems panel to use views and view containers

Re: #85164

Adoptions & Notes:

• Use renderBody instead of create and layoutBody instead of layout
• If you have public render method rename it to something else like renderContent
• Create your own memento State - important
• Header is rendered first and then body. But before body is rendered first and then actions (header). So please be aware of this so that you can fix if there are dependencies
• Header actions are rendered twice now because of merging single view to header. This needs to be fixed.

Existing Before and Shall be considered now:

• Dispose is not called on hiding panel
• Cmd+J toggle is not focusing problems

[sandy081]

Introduced donotShowContainerTitleWhenMergedWithContainer option to hide title when in single view which is needed for problems adoption.

vscode/src/vs/workbench/browser/parts/views/viewPaneContainer.ts

Line 238 in 286539c

donotShowContainerTitleWhenMergedWithContainer?: boolean;

[sandy081]

Pushed adoption changes to master and problems panel now uses views and view containers 🎉

Listed in summary what are the adoptions required.

[sandy081]

@sbatten FYI