CLI: separate every root command-tree group with a blank line

Use uniform blank-line separation between all top-level groups rather than only
around wrapped ones, for a consistent, easy-to-scan rhythm.

Author: talagluck

packages/cli/src/help-tree.ts

@@ -105,14 +105,11 @@ function compactSection(cmd: Command, helper: Help): string {
         return [label + wrapped[0], ...wrapped.slice(1).map((w) => ' '.repeat(valueCol) + w)];
     });
 
-    // Fence off wrapped (multi-line) groups with a blank line so their
-    // continuation lines don't read as separate entries. Single-line groups stay
-    // tight against each other.
+    // Separate every group with a blank line so each reads as one unit and the
+    // wrapped groups' continuation lines never look like separate entries.
     const lines: string[] = [];
     blocks.forEach((block, i) => {
-        const wraps = block.length > 1;
-        const prevWraps = i > 0 && blocks[i - 1].length > 1;
-        if (i > 0 && (wraps || prevWraps)) {
+        if (i > 0) {
             lines.push('');
         }
         lines.push(...block);