added browser default zoom out feature

emscripten/project/purr-data/components/menu/menu.html

@@ -37,7 +37,6 @@
             <li id="menu-view">
                 <ul class="rounded shadow">
                     <li id="view-zoomin"></li>
-                    <li id="view-zoomout"></li>
                     <li id="view-zoomreset"></li>
                     <li id="view-fullscreen"></li>
                 </ul>

emscripten/project/purr-data/components/menu/menu.js

@@ -116,12 +116,6 @@ function menu_options(type, w, cid) {
             modifiers: pdbundle.shortcuts.menu.zoomin_web.modifiers,
             tooltip: l("menu.zoomin_tt")
         },
-        "view-zoomout": {
-            label: l("menu.zoomout"),
-            key: pdbundle.shortcuts.menu.zoomout_web.key,
-            modifiers: pdbundle.shortcuts.menu.zoomout_web.modifiers,
-            tooltip: l("menu.zoomout_tt")
-        },
         "view-zoomreset": {
             label: l("menu.zoomreset"),
             key: pdbundle.shortcuts.menu.zoomreset_web.key,
@@ -436,6 +430,12 @@ function menu_options(type, w, cid) {
         },
 
         // View section
+        "view-zoomout": {
+            label: l("menu.zoomout"),
+            key: pdbundle.shortcuts.menu.zoomout_web.key,
+            modifiers: pdbundle.shortcuts.menu.zoomout_web.modifiers,
+            tooltip: l("menu.zoomout_tt")
+        },
         ...view_base,
 
         // View entries

emscripten/project/purr-data/utils/actions.js

@@ -149,8 +149,13 @@ function add_shortcuts(cid){
         // Add key
         shortcut += e.key.toUpperCase();
         if(window.shortkeys[cid].hasOwnProperty(shortcut)){
-            e.preventDefault()         
-            window.shortkeys[cid][shortcut].click();
+            switch(shortcut) {
+                case "Ctrl+-":
+                    break;
+                default:
+                    e.preventDefault()         
+                    window.shortkeys[cid][shortcut].click();
+            }
         }
     }
 }