feat: Standardize CodeView font size and refactor CodeHighlighter

This commit introduces a consistent font size for all CodeView instances and refactors the CodeHighlighter class.

- `CodeViewUtils.java`: The text size for CodeView instances is now set to a uniform 14f. Previously, the line number text size was set to match the view's text size, which could lead to inconsistencies.
- `CodeHighlighter.java`: The private constructor has been removed. This change doesn't alter the class's functionality as it's a utility class with static methods, but it simplifies the class structure.

Author: MihaiCristianCondrea

app/src/main/java/com/d4rk/androidtutorials/java/utils/CodeHighlighter.java

@@ -11,10 +11,6 @@
  */
 public class CodeHighlighter {
 
-    private CodeHighlighter() {
-        // Utility class
-    }
-
     /**
      * Apply a basic Java highlighting theme to the given CodeView.
      */

app/src/main/java/com/d4rk/androidtutorials/java/utils/CodeViewUtils.java

@@ -19,7 +19,8 @@ public static void applyDefaults(Typeface typeface, CodeView... views) {
         for (CodeView view : views) {
             if (view == null) continue;
             view.setTypeface(typeface);
-            view.setLineNumberTextSize(view.getTextSize());
+            view.setTextSize(14f);
+            view.setLineNumberTextSize(14f);
             view.setEnableLineNumber(false);
             view.setHorizontallyScrolling(false);
             view.setKeyListener(null);