Update walkthrough to show popular extensions (microsoft#210680)

Author: bhavyaus

src/vs/workbench/contrib/welcomeGettingStarted/common/gettingStartedContent.ts

@@ -192,7 +192,7 @@ export const walkthroughs: GettingStartedWalkthroughContent = [
 				{
 					id: 'extensionsWeb',
 					title: localize('gettingStarted.extensions.title', "Code with extensions"),
-					description: localize('gettingStarted.extensionsWeb.description.interpolated', "Extensions are VS Code's power-ups. A growing number are becoming available in the web.\n{0}", Button(localize('browsePopular', "Browse Popular Web Extensions"), 'command:workbench.extensions.action.showPopularExtensions')),
+					description: localize('gettingStarted.extensionsWeb.description.interpolated', "Extensions are VS Code's power-ups. A growing number are becoming available in the web.\n{0}", Button(localize('browsePopularWeb', "Browse Popular Web Extensions"), 'command:workbench.extensions.action.showPopularExtensions')),
 					when: 'workspacePlatform == \'webworker\'',
 					media: {
 						type: 'svg', altText: 'VS Code extension marketplace with featured language extensions', path: 'extensions-web.svg'
@@ -301,7 +301,7 @@ export const walkthroughs: GettingStartedWalkthroughContent = [
 				{
 					id: 'extensionsWebWeb',
 					title: localize('gettingStarted.extensions.title', "Code with extensions"),
-					description: localize('gettingStarted.extensionsWeb.description.interpolated', "Extensions are VS Code's power-ups. A growing number are becoming available in the web.\n{0}", Button(localize('browsePopular', "Browse Popular Web Extensions"), 'command:workbench.extensions.action.showPopularExtensions')),
+					description: localize('gettingStarted.extensionsWeb.description.interpolated', "Extensions are VS Code's power-ups. A growing number are becoming available in the web.\n{0}", Button(localize('browsePopularWeb', "Browse Popular Web Extensions"), 'command:workbench.extensions.action.showPopularExtensions')),
 					when: 'workspacePlatform == \'webworker\'',
 					media: {
 						type: 'svg', altText: 'VS Code extension marketplace with featured language extensions', path: 'extensions-web.svg'
@@ -366,7 +366,7 @@ export const walkthroughs: GettingStartedWalkthroughContent = [
 				{
 					id: 'extensions',
 					title: localize('gettingStarted.extensions.title', "Code with extensions"),
-					description: localize('gettingStarted.extensions.description.interpolated', "Extensions are VS Code's power-ups. They range from handy productivity hacks, expanding out-of-the-box features, to adding completely new capabilities.\n{0}", Button(localize('browseRecommended', "Browse Recommended Extensions"), 'command:workbench.extensions.action.showRecommendedExtensions')),
+					description: localize('gettingStarted.extensions.description.interpolated', "Extensions are VS Code's power-ups. They range from handy productivity hacks, expanding out-of-the-box features, to adding completely new capabilities.\n{0}", Button(localize('browsePopular', "Browse Popular Extensions"), 'command:workbench.extensions.action.showPopularExtensions')),
 					when: 'workspacePlatform != \'webworker\'',
 					media: {
 						type: 'svg', altText: 'VS Code extension marketplace with featured language extensions', path: 'extensions.svg'