use better accent colour + add libreddit styles (#281)

* update favicon with new logo

* only have 32x32 .ico file

* use #d74253 as new accent colour + add old libreddit styles + bolden accented buttons

* fix unrenamed libreddit themes

static/themes/libredditLight.css

@@ -0,0 +1,19 @@
+/* Libreddit light theme setting */
+.libredditLight {
+	--accent: #009a9a;
+	--green: #00a229;
+	--text: black;
+	--foreground: #f5f5f5;
+	--background: #ddd;
+	--outside: #ececec;
+	--post: #eee;
+	--panel-border: 1px solid #ccc;
+	--highlighted: white;
+	--visited: #555;
+	--shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+}
+
+html:has(> .libredditLight) {
+  /* Hint color theme to browser for scrollbar */
+  color-scheme: light;
+}