UI tweak

Signed-off-by: Cédric Foellmi <cedric@onekiloparsec.dev>

Author: onekiloparsec

src/components/power-tree-minimal.css

@@ -42,6 +42,8 @@
 }
 
 .vue-power-tree-row {
+  display: flex;
+  align-items: center;
   flex-grow: 1;
   margin-right: auto;
 }