vertical panel: increase min panel size

src/vs/workbench/browser/layout.ts

@@ -24,7 +24,7 @@ const MIN_SIDEBAR_PART_WIDTH = 170;
 const MIN_EDITOR_PART_HEIGHT = 70;
 const MIN_EDITOR_PART_WIDTH = 220;
 const MIN_PANEL_PART_HEIGHT = 77;
-const MIN_PANEL_PART_WIDTH = 220;
+const MIN_PANEL_PART_WIDTH = 300;
 const DEFAULT_PANEL_SIZE_COEFFICIENT = 0.4;
 const HIDE_SIDEBAR_WIDTH_THRESHOLD = 50;
 const HIDE_PANEL_HEIGHT_THRESHOLD = 50;