feat: support github style alerts (#513)

* feat: basic github style alerts support

* feat: implement github style alert

* chore: re-generate css

* chore: add missing prettier config

* docs: add alerts instructions to markdown

* chore: revert "docs: add alerts instructions to markdown"

This reverts commit 3a70540e0b.

* chore: redo "docs: add alerts instructions to markdown""

This reverts commit 8399373747.

* chore(build): bump hugo version

exampleSite/content/docs/guide/markdown.md

@@ -35,6 +35,44 @@ Blockquote with attribution
 [^1]: The above quote is excerpted from Rob Pike's [talk](https://www.youtube.com/watch?v=PAAkCSZUG1c) during Gopherfest, November 18, 2015.
 ```
 
+### Alerts
+
+Alerts are a Markdown extension based on the blockquote syntax that you can use to emphasize critical information.
+[GitHub-style alerts](https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#alerts) are supported.
+Please make sure you are using the latest version of Hextra and [Hugo v0.134.0](https://github.com/gohugoio/hugo/releases/tag/v0.134.0) or later.
+
+> [!NOTE]
+> Useful information that users should know, even when skimming content.
+
+> [!TIP]
+> Helpful advice for doing things better or more easily.
+
+> [!IMPORTANT]
+> Key information users need to know to achieve their goal.
+
+> [!WARNING]
+> Urgent info that needs immediate user attention to avoid problems.
+
+> [!CAUTION]
+> Advises about risks or negative outcomes of certain actions.
+
+```markdown {filename=Markdown}
+> [!NOTE]
+> Useful information that users should know, even when skimming content.
+
+> [!TIP]
+> Helpful advice for doing things better or more easily.
+
+> [!IMPORTANT]
+> Key information users need to know to achieve their goal.
+
+> [!WARNING]
+> Urgent info that needs immediate user attention to avoid problems.
+
+> [!CAUTION]
+> Advises about risks or negative outcomes of certain actions.
+```
+
 ### Tables
 
 Tables aren't part of the core Markdown spec, but Hugo supports them out-of-the-box.

exampleSite/hugo_stats.json

@@ -141,11 +141,14 @@
       "dark:hover:hx-text-gray-50",
       "dark:hover:hx-text-neutral-50",
       "dark:hover:hx-text-white",
+      "dark:hx-bg-amber-900/30",
       "dark:hx-bg-black/60",
       "dark:hx-bg-blue-900/30",
       "dark:hx-bg-dark",
       "dark:hx-bg-dark/50",
       "dark:hx-bg-gray-50/10",
+      "dark:hx-bg-green-900/30",
+      "dark:hx-bg-indigo-900/30",
       "dark:hx-bg-neutral-800",
       "dark:hx-bg-neutral-900",
       "dark:hx-bg-orange-400/20",
@@ -155,9 +158,12 @@
       "dark:hx-bg-red-900/30",
       "dark:hx-bg-yellow-700/30",
       "dark:hx-block",
+      "dark:hx-border-amber-200/30",
       "dark:hx-border-blue-200/30",
       "dark:hx-border-gray-100/20",
       "dark:hx-border-gray-400",
+      "dark:hx-border-green-200/30",
+      "dark:hx-border-indigo-200/30",
       "dark:hx-border-neutral-700",
       "dark:hx-border-neutral-800",
       "dark:hx-border-orange-400/30",
@@ -171,12 +177,15 @@
       "dark:hx-shadow-[0_-12px_16px_#111]",
       "dark:hx-shadow-[0_-1px_0_rgba(255,255,255,.1)_inset]",
       "dark:hx-shadow-none",
+      "dark:hx-text-amber-200",
       "dark:hx-text-blue-200",
       "dark:hx-text-gray-100",
       "dark:hx-text-gray-200",
       "dark:hx-text-gray-300",
       "dark:hx-text-gray-400",
       "dark:hx-text-gray-50",
+      "dark:hx-text-green-200",
+      "dark:hx-text-indigo-200",
       "dark:hx-text-neutral-200",
       "dark:hx-text-neutral-400",
       "dark:hx-text-orange-300",
@@ -256,15 +265,19 @@
       "hover:hx-text-primary-600",
       "hx-absolute",
       "hx-align-[-2.5px]",
+      "hx-align-middle",
       "hx-align-text-bottom",
       "hx-appearance-none",
       "hx-aspect-auto",
+      "hx-bg-amber-100",
       "hx-bg-black/80",
       "hx-bg-black/[.05]",
       "hx-bg-blue-100",
       "hx-bg-clip-text",
       "hx-bg-gradient-to-r",
       "hx-bg-gray-100",
+      "hx-bg-green-100",
+      "hx-bg-indigo-100",
       "hx-bg-neutral-50",
       "hx-bg-orange-50",
       "hx-bg-primary-100",
@@ -277,12 +290,15 @@
       "hx-bg-yellow-50",
       "hx-block",
       "hx-border",
+      "hx-border-amber-200",
       "hx-border-b",
       "hx-border-b-2",
       "hx-border-black/5",
       "hx-border-blue-200",
       "hx-border-gray-200",
       "hx-border-gray-500",
+      "hx-border-green-200",
+      "hx-border-indigo-200",
       "hx-border-orange-100",
       "hx-border-red-200",
       "hx-border-t",
@@ -468,6 +484,7 @@
       "hx-text-[.65rem]",
       "hx-text-[10px]",
       "hx-text-[color:hsl(var(--primary-hue),100%,50%)]",
+      "hx-text-amber-900",
       "hx-text-base",
       "hx-text-blue-900",
       "hx-text-center",
@@ -479,6 +496,8 @@
       "hx-text-gray-700",
       "hx-text-gray-800",
       "hx-text-gray-900",
+      "hx-text-green-900",
+      "hx-text-indigo-900",
       "hx-text-left",
       "hx-text-lg",
       "hx-text-orange-800",