Web Inspector: style declaration editor: visual highlight doesn't match actual select...

Web Inspector: style declaration editor: visual highlight doesn't match actual selected text
https://bugs.webkit.org/show_bug.cgi?id=133965

Reviewed by Joseph Pecoraro.

Update styles for css style editor to fix highlighting visual mismatch glitch.

* UserInterface/Views/CSSStyleDeclarationTextEditor.css:
(.css-style-text-editor > .CodeMirror .CodeMirror-placeholder):
(.css-style-text-editor > .CodeMirror pre):
(.css-style-text-editor.read-only > .CodeMirror pre):
Updated styles to eliminate highlight mismatch by adjusting the padding and
text-indent values.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@170077 268f45cc-cd09-0410-ab3c-d52691b4dbfc