improvement: Make background SVGs consistent (#5478)

* Replace Base64 encoded SVGs with unencoded version. Replace partially URL encoded SVGs with unencoded version, removing extraneous LF character

src/style/_form.scss

@@ -7,7 +7,7 @@ select
 
     border: 2px solid $form-select-border-color;
     border-radius: 4px;
-    background: $form-select-background-color url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyMCAyMCI+ICAgIDxwYXRoIGQ9Ik0xMy40MTggNy44NTljLjI3MS0uMjY4LjcwOS0uMjY4Ljk3OCAwIC4yNy4yNjguMjcyLjcwMSAwIC45NjlsLTMuOTA4IDMuODNjLS4yNy4yNjgtLjcwNy4yNjgtLjk3OSAwbC0zLjkwOC0zLjgzYy0uMjctLjI2Ny0uMjctLjcwMSAwLS45NjkuMjcxLS4yNjguNzA5LS4yNjguOTc4IDBMMTAgMTFsMy40MTgtMy4xNDF6Ii8+PC9zdmc+) right 10px center no-repeat;
+    background: $form-select-background-color url('data:image/svg+xml, <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M13.418 7.859c.271-.268.709-.268.978 0 .27.268.272.701 0 .969l-3.908 3.83c-.27.268-.707.268-.979 0l-3.908-3.83c-.27-.267-.27-.701 0-.969.271-.268.709-.268.978 0L10 11l3.418-3.141z"/></svg>') right 10px center no-repeat;
     background-size: 20px;
     box-shadow: 0 1px 2px 0 rgba($form-select-box-shadow-color, .25);
 
@@ -222,7 +222,7 @@ textarea
 
         &:checked + label > .item
         {
-            background: $form-checkbox-background-color url(data:image/svg+xml,%0A%3Csvg%20width%3D%2210px%22%20height%3D%228px%22%20viewBox%3D%223%207%2010%208%22%20version%3D%221.1%22%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%3E%0A%20%20%20%20%3C%21--%20Generator%3A%20Sketch%2042%20%2836781%29%20-%20http%3A//www.bohemiancoding.com/sketch%20--%3E%0A%20%20%20%20%3Cdesc%3ECreated%20with%20Sketch.%3C/desc%3E%0A%20%20%20%20%3Cdefs%3E%3C/defs%3E%0A%20%20%20%20%3Cpolygon%20id%3D%22Rectangle-34%22%20stroke%3D%22none%22%20fill%3D%22%2341474E%22%20fill-rule%3D%22evenodd%22%20points%3D%226.33333333%2015%203%2011.6666667%204.33333333%2010.3333333%206.33333333%2012.3333333%2011.6666667%207%2013%208.33333333%22%3E%3C/polygon%3E%0A%3C/svg%3E) center center no-repeat;
+            background: $form-checkbox-background-color url('data:image/svg+xml, <svg width="10px" height="8px" viewBox="3 7 10 8" version="1.1" xmlns="http://www.w3.org/2000/svg"><polygon id="Rectangle-34" stroke="none" fill="#41474E" fill-rule="evenodd" points="6.33333333 15 3 11.6666667 4.33333333 10.3333333 6.33333333 12.3333333 11.6666667 7 13 8.33333333"></polygon></svg>') center center no-repeat;
         }
     }
 }

src/style/_models.scss

@@ -47,7 +47,7 @@
 
             content: '';
 
-            background: url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2224%22%20height%3D%2224%22%20viewBox%3D%220%200%2024%2024%22%3E%0A%20%20%20%20%3Cpath%20d%3D%22M10%206L8.59%207.41%2013.17%2012l-4.58%204.59L10%2018l6-6z%22/%3E%0A%3C/svg%3E%0A) center center no-repeat;
+            background: url('data:image/svg+xml, <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg>') center no-repeat;
             background-size: 100%;
         }
     }