use px widths

src/index.css

@@ -13,7 +13,7 @@ body {
   /* padding: 0; */
   display: grid;
   grid-template-rows: auto minmax(0, 1fr);
-  grid-template-columns: 1fr minmax(0, 4fr);
+  grid-template-columns: auto minmax(0, 4fr);
 }
 
 body > header {
@@ -37,7 +37,7 @@ aside {
 
   min-width: 120px;
   max-width: 50vw;
-  width: 20wv;
+  width: 200px;
 }
 
 #editorGrid {

src/renderer.ts

@@ -47,7 +47,7 @@ const fixedHeightEditor = EditorView.theme({
         minHeight: "0px",
         resize: "horizontal",
         overflow: "auto",
-        width: "30vw",
+        width: "400px",
         minWidth: "8em",
     },
     ".cm-scroller": { overflow: "auto" }