better commit messages, fix html escaping in code

appview/pages/pages.go

···
 		"length": func(v []string) int {
 			return len(v)
 		},
+		"splitN": func(s, sep string, n int) []string {
+			return strings.SplitN(s, sep, n)
+		},
+		"unescapeHtml": func(s string) template.HTML {
+			return template.HTML(s)
+		},
 	}
 }
 

appview/pages/templates/repo/blob.html

···
 {{ if .IsBinary }}<p class="text-center text-gray-400">This is a binary file and will not be displayed.</p>{{ else }}
 <pre class="font-mono text-sm overflow-auto relative text-ellipsis"><code>{{ range $idx, $line := $lines }}<span class="flex">
   <span class="{{ $code_number_style }}" style="min-width: {{$tot_chars}}ch;">{{ add $idx 1 }}</span>
-  <span class="whitespace-pre">{{ $line }}</span></span>{{ else }}<em class="text-gray-400">this file is empty</em>{{ end }}</code></pre>{{ end}}
+  <span class="whitespace-pre">{{ unescapeHtml $line }}</span></span>{{ else }}<em class="text-gray-400">this file is empty</em>{{ end }}</code></pre>{{ end}}
 {{ end }}

appview/pages/templates/repo/index.html

···
        before:top-1/2
        before:-translate-y-1/2
        ">
-        <div class="text-base">{{ .Message }}</div>
+
+        <div id="commit-message">
+          {{ $messageParts := splitN .Message "\n\n" 2 }}
+          <div class="text-base cursor-pointer">
+            {{ index $messageParts 0 }}
+            {{ if gt (len $messageParts) 1 }}
+            <div class="text-sm inline rounded-sm bg-gray-300 text-gray-700 px-1"
+                  hx-on:click="this.nextElementSibling.classList.toggle('hidden')">...</div>
+            <div class="hidden mt-1 text-sm">{{ index $messageParts 1 }}</div>
+            {{ end }}
+          </div>
+        </div>
 
         <div class="text-xs text-gray-500">
           <span class="font-mono">