chore: should be able to copy commit text from history viewer commit detail pane in safari too

Author: abose

src/extensions/default/Git/styles/git-styles.less

@@ -613,7 +613,6 @@
         }
         .commitBody {
             padding: 0 30px;
-            user-select: text;
         }
         .commit-files {
             padding: 0 20px;

src/extensions/default/Git/templates/history-viewer.html

@@ -33,7 +33,7 @@ <h1 class="commit-title selectable-text"><span>{{commit.subject}}</span></h1>
         </div>
     </div>
     <div class="body">
-        <div class="commitBody">{{{bodyMarkdown}}}</div>
+        <div class="commitBody selectable-text">{{{bodyMarkdown}}}</div>
         <div class="table-striped tab-content">
             <div class="commit-files">
                 <ul class="nav nav-tabs nav-stacked filesContainer"></ul>