Unconditionally enable the proposed API

To test run an extension that uses the proposed API.

We also override isProposedApiEnabled in case an extension does not declare the
APIs it needs correctly (the Jupyter extension had this issue).

Index: code-server/lib/vscode/src/vs/workbench/services/extensions/common/abstractExtensionService.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/workbench/services/extensions/common/abstractExtensionService.ts
+++ code-server/lib/vscode/src/vs/workbench/services/extensions/common/abstractExtensionService.ts
@@ -1134,7 +1134,7 @@ class ProposedApiController {
 
 		this._envEnabledExtensions = new Set((_environmentService.extensionEnabledProposedApi ?? []).map(id => ExtensionIdentifier.toKey(id)));
 
-		this._envEnablesProposedApiForAll =
+		this._envEnablesProposedApiForAll = true ||
 			!_environmentService.isBuilt || // always allow proposed API when running out of sources
 			(_environmentService.isExtensionDevelopment && productService.quality !== 'stable') || // do not allow proposed API against stable builds when developing an extension
 			(this._envEnabledExtensions.size === 0 && Array.isArray(_environmentService.extensionEnabledProposedApi)); // always allow proposed API if --enable-proposed-api is provided without extension ID
Index: code-server/lib/vscode/src/vs/workbench/services/extensions/common/extensions.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/workbench/services/extensions/common/extensions.ts
+++ code-server/lib/vscode/src/vs/workbench/services/extensions/common/extensions.ts
@@ -135,10 +135,7 @@ export interface IExtensionHost {
 }
 
 export function isProposedApiEnabled(extension: IExtensionDescription, proposal: ApiProposalName): boolean {
-	if (!extension.enabledApiProposals) {
-		return false;
-	}
-	return extension.enabledApiProposals.includes(proposal);
+	return true
 }
 
 export function checkProposedApiEnabled(extension: IExtensionDescription, proposal: ApiProposalName): void {