fix: indent guides causes 1px drift in word wrapped lines

Author: abose

src/extensionsIntegrated/indentGuides/main.js

@@ -136,6 +136,7 @@ define(function (require, exports, module) {
         } else if (shouldRerender || cm.__overlayEnabled !== enabled) {
             cm.__overlayEnabled = enabled;
             _reRenderOverlay();
+            // rare event, should not happen often. log if we are debugging performance related issues.
             console.log("Refreshing indent guides");
         }
     }

src/styles/brackets_codemirror_override.less

@@ -293,16 +293,14 @@ span.cm-emstrong {
 
 .cm-phcode-indent-guides::before {
     content: " ";
-    width: 1px;
     display: inline-block;
-    position: relative;
-    border-left: 1px solid rgba(128, 128, 128, 0.3);
+    position: absolute;
+    box-shadow: inset 1px 0 0 rgba(128, 128, 128, 0.3);
 }
 
 .cm-phcode-indent-guides-none::before {
     content: " ";
-    width: 1px;
     display: inline-block;
-    position: relative;
-    border-left: 1px solid transparent;
+    position: absolute;
+    box-shadow: none;
 }