popup: use "height: min-content" instead of the hack

popup/popup.css

@@ -1,9 +1,14 @@
+html, body {
+  height: min-content;
+}
+
 body {
   width: 252px;
   font-size: 12px;
   font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
   margin: 0;
 }
+
 .firefox body {
   background-color: #fff;
   color: #000;

popup/popup.js

@@ -62,12 +62,6 @@ function initPopup(url) {
 
   setPopupWidth();
 
-  // force Chrome to resize the popup
-  if (!FIREFOX) {
-    document.body.style.height = '10px';
-    document.documentElement.style.height = '10px';
-  }
-
   // action buttons
   $('#disableAll').onchange = function () {
     installed.classList.toggle('disabled', this.checked);