Cleanup (#5)

- Update formatting for stub files
- Update docs

While original project, Profanity, provides valuable basis for this
fork, we are not affiliated with the upstream. This commit
is updating documentation to reflect accurate information.

The docs are going to be updated further once the website is created.

Reviewed-on: #5
Co-authored-by: Jabber Developer <jabber.developer@jabber.space>
Co-committed-by: Jabber Developer <jabber.developer@jabber.space>

tests/unittests/xmpp/stub_avatar.c

@@ -2,7 +2,7 @@
 #include <glib.h>
 #include <stdlib.h>
 
-void avatar_pep_subscribe(void){};
+void avatar_pep_subscribe(void) {};
 
 gboolean
 avatar_get_by_nick(const char* nick, gboolean open)

tests/unittests/xmpp/stub_xmpp.c

@@ -312,8 +312,8 @@ presence_sub_request_exists(const char* const bare_jid)
 }
 
 // iq functions
-void iq_disable_carbons(){};
-void iq_enable_carbons(){};
+void iq_disable_carbons() {};
+void iq_enable_carbons() {};
 void
 iq_send_software_version(const char* const fulljid)
 {