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/libredditBlack.css

@@ -0,0 +1,14 @@
+/* Libreddit black theme setting */
+.libredditBlack {
+	--accent: #009a9a;
+	--green: #00a229;
+	--text: white;
+	--foreground: #0f0f0f;
+	--background: black;
+	--outside: black;
+	--post: black;
+	--panel-border: 2px solid #0f0f0f;
+	--highlighted: #0f0f0f;
+	--visited: #aaa;
+	--shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+}