chore: fixed documentation can't be watched for line-height and size …

…parsers

lib/parser/font_size_parser.dart

@@ -1,3 +1,14 @@
+// constant centimeters multiplier
+const double cmSizeMultiplier = 37.7952755906;
+// constant millimeters multiplier
+const double mmSizeMultiplier = 3.7795275591;
+// constant inches multiplier
+const double inchSizeMultiplier = 96;
+// constant points multiplier
+const double pointSizeMultiplier = 1.3333333333;
+// constant picas multiplier
+const double picasSizeMultiplier = 16;
+
 /// Converts various CSS units to pixels (px).
 ///
 /// This function supports the following units:
@@ -29,11 +40,6 @@
 /// [rootFontSize] is the font-size of the root element, used for `rem` units.
 ///
 /// Returns the equivalent value in pixels.
-const double cmSizeMultiplier = 37.7952755906;
-const double mmSizeMultiplier = 3.7795275591;
-const double inchSizeMultiplier = 96;
-const double pointSizeMultiplier = 1.3333333333;
-const double picasSizeMultiplier = 16;
 double parseSizeToPx(
   String value, {
   double fontSizeEmMultiplier = 16.0,

lib/parser/line_height_parser.dart

@@ -1,3 +1,5 @@
+/// constant common line-height multiplier 
+const normalLineHeightMultiplier = 1.2;
 /// Parses a CSS `line-height` value to a pixel value based on the specified [fontSize] and optional [rootFontSize].
 ///
 /// Supports unitless values, percentages, pixels (`px`), ems (`em`), rems (`rem`), and the keyword `normal`.
@@ -25,7 +27,6 @@
 /// print(parseLineHeight('1.5em')); // 24.0 (16 * 1.5)
 /// print(parseLineHeight('1.2rem')); // 19.2 (16 * 1.2)
 /// ```
-const normalLineHeightMultiplier = 1.2;
 double parseLineHeight(String lineHeight, {double fontSize = 16, double rootFontSize = 16}) {
   // Convert line-height values
   double parsedValue;