Adds `elegant` theme for pelican

.gitmodules

@@ -1,6 +1,6 @@
-[submodule "elegant"]
-	path = elegant
-	url = git@github.com:talha131/pelican-elegant.git
 [submodule "plugins"]
 	path = plugins
 	url = https://github.com/getpelican/pelican-plugins
+[submodule "elegant"]
+	path = elegant
+	url = gogs@git.fangmeier.tech:caleb/pelican-elegant.git

elegant

@@ -0,0 +1 @@
+Subproject commit 44c8fbcfe631784f84c8b92b7273280b3c956182