make command line look the same on all browsers

client/src/components/infoview/infoview.css

@@ -48,8 +48,9 @@
   display: flex;
 }
 
-.command-line form>input{
+.command-line button {
   display: block;
+  white-space: nowrap;
 }
 
 .command-line .command-line-input-wrapper{
@@ -57,10 +58,12 @@
   padding: 0.4em .6em 0;
   font-size: 1rem;
   background: white;
+  display: flex;
+  flex-direction: column;
 }
 
 .command-line .command-line-input{
-  height: 1.2em;
+  flex: 1;
 }
 
 /* Turn off some monaco decorations: */