Merge pull request #2041 from profanity-im/some-improvements

Summary:
- Print the final storage location when successfully decrypting a file with `aesgcm://` source.
- Less GString
- Re-factor cmd_presence()
- Improve const correctness
- Use correct free function. Fixes: 75d7663 ("Free wins summary list")

Pull Request Source: https://github.com/profanity-im/profanity/pull/2041

Author: Steffen Jaeckel <s@jaeckel.eu>

tests/unittests/test_jid.c

@@ -219,7 +219,7 @@ returns_fulljid_when_exists(void** state)
 {
     Jid* jid = jid_create("localpart@domainpart/resourcepart");
 
-    char* result = jid_fulljid_or_barejid(jid);
+    const char* result = jid_fulljid_or_barejid(jid);
 
     assert_string_equal("localpart@domainpart/resourcepart", result);
 
@@ -231,7 +231,7 @@ returns_barejid_when_fulljid_not_exists(void** state)
 {
     Jid* jid = jid_create("localpart@domainpart");
 
-    char* result = jid_fulljid_or_barejid(jid);
+    const char* result = jid_fulljid_or_barejid(jid);
 
     assert_string_equal("localpart@domainpart", result);