DevTools: Fix "documentation" module code style

LayoutTests/inspector/documentation/document-parser-expected.txt

 "{{A|B={{C|D=blablabla}}}}" is parsed
 {
     A : {
         B : {
             C : {
                 D : "blablabla"
             }
         }
     }
 }
@@ skipping 36 matching lines @@
 {
     pageTitle : {
     }
     remarks : {
         Remarks : "The optional number1, number2, ..., numberN arguments are numeric expressions to be evaluated.
 If no arguments are provided, the return value is equal to [[javascript/Number/constants|Number.NEGATIVE_INFINITY]]. If any argument is '''NaN''' , the return value is also '''NaN'''."
     }
     summary : "Returns the larger of a set of supplied numeric expressions."
 }
 {
-    CSSproperties : {
+    cssProperties : {
         Animatable : "Yes"
         Applies to : "All elements"
         CSS object model property : "color"
         CSS percentages : "NA"
         Computed value : "For a non-translucent color, an hexadecimal equivalent is used. Otherwise it is the RGBa equivalent"
         Inherited : "Yes"
         Initial value : "black, except in a few cases (see notes)"
         Media : "visual"
         Values : {
             CSS Property Value : {
                 Data Type : "color"
                 Description : "[[css/color|CSS color value]]"
             }
         }
     }
     pageTitle : {
     }
     standardizationStatus : "W3C Recommendation"
     summary : "The color property sets the color of an element's foreground content (usually text), accepting any standard CSS color from keywords and hex values to RGB(a) and HSL(a)."
 }