fix #190228 (#191207)

src/vs/workbench/contrib/extensions/browser/extensionEditor.ts

@@ -855,12 +855,10 @@ export class ExtensionEditor extends EditorPane {
 		extensionPackReadme.style.maxWidth = '882px';
 
 		const extensionPack = append(extensionPackReadme, $('div', { class: 'extension-pack' }));
-		if (manifest.extensionPack!.length <= 3) {
+		if (manifest.extensionPack!.length < 3) {
 			extensionPackReadme.classList.add('one-row');
-		} else if (manifest.extensionPack!.length <= 6) {
+		} else if (manifest.extensionPack!.length < 5) {
 			extensionPackReadme.classList.add('two-rows');
-		} else if (manifest.extensionPack!.length <= 9) {
-			extensionPackReadme.classList.add('three-rows');
 		} else {
 			extensionPackReadme.classList.add('more-rows');
 		}

src/vs/workbench/contrib/extensions/browser/media/extensionEditor.css

@@ -517,10 +517,6 @@
 	height: 224px;
 }
 
-.extension-editor > .body > .content > .details > .readme-container > .extension-pack-readme.three-rows > .extension-pack {
-	height: 306px;
-}
-
 .extension-editor > .body > .content > .details > .readme-container > .extension-pack-readme.more-rows > .extension-pack {
 	height: 326px;
 }