working weapons section in char sheet

Additions:
- re-added getData() method of actor sheet for sorted items
- added an item-description CSS class for handling of overflow
- added a 1.5 CSS flex box

Changes:
- restricted previous sample items section to only weapons
  (to be re-used for other item types)

Fixes:
- fixed input types in weapon sheet

src/scss/global/_flex.scss

@@ -15,6 +15,9 @@
     .flex1 {
         flex: 1;
     }
+    .flex15 {
+        flex: 1.5;
+    }
     .flex2 {
         flex: 2;
     }
@@ -38,6 +41,9 @@
     .flex1 {
         flex: 1;
     }
+    .flex15 {
+        flex: 1.5;
+    }
     .flex2 {
         flex: 2;
     }