fix(welcome): space the landing actions evenly (#612)

The landing's three actions were flex items that hugged their labels, so the gap between icons followed the text length. They are now equal-width grid columns, which spaces the icons evenly in every locale.

Co-authored-by: a-rookie-of-C-language <[email protected]>

src/features/welcome/Welcome.module.css

@@ -335,8 +335,12 @@
   color: var(--fg-muted);
   line-height: 20px;
 }
+/* Equal columns (as wide as the longest label) keep the icon spacing uniform
+   regardless of each label's length. */
 .landingActions {
-  display: flex;
+  display: grid;
+  grid-auto-flow: column;
+  grid-auto-columns: 1fr;
   gap: 24px;
   margin-top: 16px;
 }