Recfactored and simplified more code

- Added function to convert color string to ansi color string
- Added `trim` and `join` utility functions
- Added initial plugin test case
- Implemented `config get` command to see config properties
- Improved logging functionality and removed duplicate logging functions
- Removed unused functions
- Fixed more styling issues
- Fixed some CLI commands not working correctly
- Fixed CLI documentation format
- Fixed some error handling issues

tests/plugin.cpp

@@ -0,0 +1,10 @@
+#include "plugin.hpp"
+
+#include <doctest.h>
+
+
+TEST_SUITE("Test example plugin"){
+	TEST_CASE("Test initialization"){
+		
+	}
+}