Move template files based on Hugo v0.146 revamp

See https://gohugo.io/templates/new-templatesystem-overview/

Under layouts/
- mv _default/* .
- mv partials _partials
- mv shortcodes _shortcodes
- mv taxonomy/list.html taxonomy.html
- mv taxonomy/term.html term.html

layouts/_shortcodes/abbr.html

@@ -0,0 +1,5 @@
+{{ if .IsNamedParams }}
+    <abbr title="{{ .Get "title" }}">{{ .Inner }}</abbr>
+{{ else }}
+    <abbr title="{{ .Get 0 }}">{{ .Inner }}</abbr>
+{{ end }}

layouts/_shortcodes/aside.html

@@ -0,0 +1,28 @@
+{{ $type := "" }}
+{{ if .IsNamedParams }}
+    {{ $type = .Get "type" | default "note" }}
+{{ else }}
+    {{ $type = .Get 0 | default "note" }}
+{{ end }}
+
+{{/* This idea comes from the LoveIt theme:
+     https://github.com/dillonzq/LoveIt/blob/aa834e89af8349f6c18d4c7ad50a73fd5f1e40e0/layouts/shortcodes/admonition.html#L3-L14
+*/}}
+
+{{ $icons := dict "note" "pencil" }}
+{{ $icons  = dict "info" "info" | merge $icons }}
+{{ $icons  = dict "tip" "lightbulb" | merge $icons }}
+{{ $icons  = dict "warning" "info" | merge $icons }}
+{{ $icons  = dict "example" "flask" | merge $icons }}
+{{ $icons  = dict "quote" "quote" | merge $icons }}
+
+<aside class="{{ $type }}">
+    <div class="aside-title">
+        {{ partial "icon.html" (index $icons $type) }}
+        {{ title $type }}
+    </div>
+
+    <div class="aside-content">
+        {{ .Inner | .Page.RenderString (dict "display" "block") }}
+    </div>
+</aside>

layouts/_shortcodes/figure.html

@@ -0,0 +1,15 @@
+{{ $resource := .Page.Resources.GetMatch (.Get "src") }}
+
+{{ $noborder := false }}
+{{ if .Get "noborder" }}
+    {{ $noborder = true }}
+{{ end }}
+
+{{ $hidecaption := false }}
+{{ if .Get "hidecaption" }}
+    {{ $hidecaption = true }}
+{{ end }}
+
+<p>
+    {{ partial "figure.html" (dict "src" $resource "noborder" $noborder "hidecaption" $hidecaption) }}
+</p>

layouts/_shortcodes/full-width-hr.html

@@ -0,0 +1 @@
+<hr class="full-width-hr">

layouts/_shortcodes/include.html

@@ -0,0 +1,20 @@
+{{ $path := "" }}
+{{ $markdown := false }}
+{{ if .IsNamedParams }}
+    {{ $path = .Get "path" }}
+    {{ with .Get "markdown" }}
+        {{ $markdown = . }}
+    {{ end }}
+{{ else }}
+    {{ $path = .Get 0 }}
+{{ end }}
+
+{{ with ($path | readFile) }}
+    {{ if $markdown }}
+        {{ $path | readFile | $.Page.RenderString (dict "display" "block") }}
+    {{ else }}
+        {{ $path | readFile }}
+    {{ end }}
+{{ else }}
+    {{ errorf "file not found: %s" $path }}
+{{ end }}

layouts/_shortcodes/remote-figure.html

@@ -0,0 +1,13 @@
+{{ $border := false }}
+{{ if .Get "border" }}
+    {{ $border = true }}
+{{ end }}
+
+{{ $hidecaption := false }}
+{{ if .Get "hidecaption" }}
+    {{ $hidecaption = true }}
+{{ end }}
+
+<p>
+    {{ partial "remote_figure.html" (dict "src" (.Get "src") "border" $border "hidecaption" $hidecaption "type" (.Get "type") "alt" (.Get "alt")) }}
+</p>

layouts/_shortcodes/see-also.html

@@ -0,0 +1,7 @@
+<div class="see-also">
+    {{ with .Site.GetPage (.Get 0) }}
+        <p>{{ i18n "see_also" }} <a href="{{ .Permalink }}">{{ .Title | markdownify }}</a></p>
+    {{ else }}
+        {{ errorf "Page could not be found for see-also shortcode: %s" .Position }}
+    {{ end }}
+</div>