ui: milkdown: adjust menu size

packages/ui-default/components/editor/cmeditor.styl

@@ -19,3 +19,19 @@
   min-width: 50%
   padding-left: 0px
   padding-right: 0px
+
+.milkdown-nutoqn
+  height: 1.2em !important
+  width: 1.2em !important
+  margin: 0.5em !important
+  padding: 0.2em !important
+
+.milkdown-g1oupw
+  min-height: 0.8em !important
+  margin: 0.5em !important
+
+.milkdown-9fefow
+  .menu-selector
+    height: 1em !important
+  .menu-selector-list
+    left: auto !important