refactoring of code to support themes and new hellug theme

themes/hellug-minimal-2/theme.toml

@@ -0,0 +1,11 @@
+name = "hellug-minimal"
+license = "GPL-2"
+description = "hellug minimal/compatible UI."
+homepage = "https://dev.hellug.gr"
+tags = ["blog","simple","responsive","minimal","tags","personal","clean","shortcodes"]
+features = ["blog", "Clean and minimal", "Responsive", "Syntax highlighting",]
+min_version = "0.41"
+
+[author]
+  name = "Hellug Devs"
+  homepage = "https://dev.hellug.gr"