💄 style(blog): adjust indentation for mermaid diagram

- update indentation to improve readability of the class diagram in the blog post

content/blog/shortcodes/index.md

@@ -1,7 +1,7 @@
 +++
 title = "Custom shortcodes"
 date = 2023-02-19
-updated = 2025-02-21
+updated = 2025-03-19
 description = "This theme includes some useful custom shortcodes that you can use to enhance your posts. Whether you want to display images that adapt to light and dark themes, or format a professional-looking reference section, these custom shortcodes have got you covered."
 
 [taxonomies]
@@ -60,28 +60,28 @@ The diagram will be rendered as follows:
 
 {% mermaid() %}
 classDiagram
-    class CognitiveDistortions {
-        +AllOrNothingThinking()
-        +Overgeneralization()
-        +MentalFilter()
-        +JumpingToConclusions()
-    }
-    class AllOrNothingThinking {
-        +SeeInExtremes()
-    }
-    class Overgeneralization {
-        +GeneralizeFromSingle()
-    }
-    class MentalFilter {
-        +FocusOnNegative()
-    }
-    class JumpingToConclusions {
-        +MakeAssumptions()
-    }
-    CognitiveDistortions *-- AllOrNothingThinking
-    CognitiveDistortions*-- Overgeneralization
-    CognitiveDistortions *-- MentalFilter
-    CognitiveDistortions*-- JumpingToConclusions
+  class CognitiveDistortions {
+    +AllOrNothingThinking()
+    +Overgeneralization()
+    +MentalFilter()
+    +JumpingToConclusions()
+  }
+  class AllOrNothingThinking {
+    +SeeInExtremes()
+  }
+  class Overgeneralization {
+    +GeneralizeFromSingle()
+  }
+  class MentalFilter {
+    +FocusOnNegative()
+  }
+  class JumpingToConclusions {
+    +MakeAssumptions()
+  }
+  CognitiveDistortions *-- AllOrNothingThinking
+  CognitiveDistortions*-- Overgeneralization
+  CognitiveDistortions *-- MentalFilter
+  CognitiveDistortions*-- JumpingToConclusions
 {% end %}
 
 The Mermaid shortcode supports two parameters: