[vscode] API gap: Theia master vs. VS Code 1.93

[rschnekenbu]

This bug tracks the differences between current master Theia VS Code API and VS Code 1.93:

Public APIs:

• [vscode] Move stubbed implementation of TerminalShellIntegration from proposed to main theia.d.ts #14107

• [vscode] TreeView reveal options fields become readonly #14109
• [vscode] Additions to authentication namespace and session management with several accounts #14110
• [vscode] TestMessageStackFrame addition to TestMessage  #14111

Declarative APIs:

• [vscode] Clean various history menus and add missing ones from 1.93  #14112
• [vscode] Add viewContainer/title menu as a proposed menu #14113
• [vscode] Add debug/createConfiguration menu as a proposed menu #14114

Proposed API evolution (see #14104):

• [vscode] Evolution of the extensionsAny.d.ts interface #14115
• scmHistoryProvider.d.ts: [vscode] support proposed API scmHistoryProvider introduced with vscode 1.83 #13064 comment still valid.

Application management:

• [vscode] bump API compatibility version to 1.93.X #14116

[rschnekenbu]

Closing this task, as main implementation tasks have been completed.