fix: dict type page parameters fall back to site parameters using merge behavior (#670)

> The `Param` method on a `Page` object looks for the given `KEY` in page parameters, and returns the corresponding value. If it cannot find the `KEY `in page parameters, it looks for the `KEY` in site parameters. If it cannot find the `KEY` in either location, the Param method returns `nil`.
>
> See: https://gohugo.io/methods/page/param/

So `.Page.Param` is only suitable for simple types.

hugo.toml

@@ -1166,6 +1166,7 @@ enable = false
 c4u = false
 
 # Page config
+# TODO migrate mapping key to `params` layer in the future
 [params.page]
 # FixIt 0.2.18 | NEW whether to enable the author's avatar of the post
 authorAvatar = true

layouts/_markup/render-codeblock-json.html

@@ -1,4 +1,4 @@
-{{- $jsonViewer := .Attributes | merge (.Page.Param "jsonViewer") -}}
+{{- $jsonViewer := .Attributes | merge .Page.Params.jsonViewer | merge .Page.Site.Params.jsonViewer -}}
 {{- if $jsonViewer.enable -}}
   {{- $attrs := printf `expand-depth="%v"` $jsonViewer.expanddepth -}}
   {{- $copyable := false -}}

layouts/_partials/plugin/code-block-wrapper.html

@@ -1,5 +1,5 @@
 {{- /* Hook for code blocks rendering */ -}}
-{{- $config := .Attributes | merge (.Page.Param "codeblock") -}}
+{{- $config := .Attributes | merge .Page.Params.codeblock | merge .Page.Site.Params.codeblock -}}
 {{- $result := transform.HighlightCodeBlock . -}}
 {{- $wrapper := $result.Wrapped -}}
 

layouts/_shortcodes/version.html

@@ -1,4 +1,4 @@
-{{- $rvc := .Page.Param "repoVersion" -}}
+{{- $rvc := .Page.Params.repoVersion | merge .Page.Site.Params.repoVersion -}}
 {{- $version := .Get 0 -}}
 {{- $type := .Get 1 | default "new" | lower -}}
 {{- $label := T (printf "version.%v" $type) | default (upper $type) -}}