Make specifying `.jsonc` suffix for configs optional

https://github.com/fastfetch-cli/fastfetch/commit/456a58c8f57aaf22c51571ec0ead1e7c40c3d860

From: =?UTF-8?q?=E6=9D=8E=E9=80=9A=E6=B4=B2?= <zhangsongcui3371@sina.com>
Date: Tue, 19 Dec 2023 15:26:51 +0800
Subject: [PATCH] fastfetch: default preset names to `.jsonc`

Fix #666
--- a/src/fastfetch.c
+++ b/src/fastfetch.c
@@ -501,6 +501,11 @@ static void optionParseConfigFile(FFdata* data, const char* key, const char* val
         ffStrbufAppendS(&absolutePath, value);
 
         bool success = isJsonConfig ? parseJsoncFile(absolutePath.chars) : parseConfigFile(data, absolutePath.chars);
+        if (!success)
+        {
+            ffStrbufAppendS(&absolutePath, ".jsonc");
+            success = parseJsoncFile(absolutePath.chars);
+        }
 
         if(success)
             return;
@@ -514,6 +519,11 @@ static void optionParseConfigFile(FFdata* data, const char* key, const char* val
         ffStrbufAppendS(&absolutePath, value);
 
         bool success = isJsonConfig ? parseJsoncFile(absolutePath.chars) : parseConfigFile(data, absolutePath.chars);
+        if (!success)
+        {
+            ffStrbufAppendS(&absolutePath, ".jsonc");
+            success = parseJsoncFile(absolutePath.chars);
+        }
 
         if(success)
             return;