[Frontend] Fixes to scrolling and layout in Inspector

open #638
In progress;

platform/features/layout/res/templates/plot-options-browse.html

@@ -1,4 +1,4 @@
-<style>
+<!--<style>
     .l-inspect .inspector-plot-options .plot-options-form .label {
         text-transform: none;
     }
@@ -19,9 +19,9 @@
     .l-inspect .inspector-plot-options .plot-options-form .form .form-row.first {
         border-bottom: 1px solid rgba(255, 255, 255, 0.1);
     }
+</style>-->
 
-</style>
-<div ng-controller="PlotOptionsController" class="inspector-plot-options">
+<div ng-controller="PlotOptionsController" class="flex-elem grows l-inspector-part">
     <em>Display</em>
     <ul class="first flex-elem grows vscroll">
         <ul class="tree">