update ActorSheet to ActorSheetV2 and do a general cleanup pass

move editable-input partial into its own file so it doesn't have to be copy-pasted everywhere
change css to use nesting

src/ItemSheets/Gegenstand.hbs

@@ -1,20 +1,3 @@
-{{#*inline "editable-input"}}
-    <div class="editable-input editable-{{type}}">
-        {{#if @root.editable}}
-            <input type="{{type}}" name="{{name}}" value="{{value}}" placeholder="{{placeholder}}">
-        {{else}}
-            <div>
-                {{value}}
-                {{#unless value}}{{placeholder}}{{/unless}}
-            </div>
-        {{/if}}
-
-        {{#if placeholder}}
-            <div class="placeholder">{{placeholder}}</div>
-        {{/if}}
-    </div>
-{{/inline}}
-
 <div class="item-sheet {{ cssClass }}" autocomplete="off">
     <div class="row">
         <img class="item-image" src="{{ item.img }}" title="{{ item.name }}" {{#if editable}}data-edit="img"{{/if}}>
@@ -26,4 +9,4 @@
             </div>
         </div>
     </div>
-</div>
+</div>