refactor: simplify fn_print_ok and fn_print_ok_nl functions

The code changes in this commit refactor the `fn_print_ok` and `fn_print_ok_nl` functions in the `core_messages.sh` file. The changes remove unnecessary formatting and only print the command action and self name if they exist. This simplifies the code and improves readability.

chore: improve error message in fix.sh

In the `fix.sh` file, an error message has been improved to provide clearer information when a registered fix script does not exist. The message now states that the specific fix script is registered but doesn't exist, without mentioning any typos or modifications to other files.

These changes enhance the functionality and maintainability of the codebase.

lgsm/modules/core_messages.sh

@@ -143,18 +143,18 @@ fn_print_dots_nl() {
 # [  OK  ]
 fn_print_ok() {
 	if [ "${commandaction}" ]; then
-		echo -en "${bold}${creeol}[${green}  OK  ${default}]${default} ${commandaction} ${selfname}: $*"
+		echo -en "${commandaction} ${selfname}: $*"
 	else
-		echo -en "${bold}${creeol}[${green}  OK  ${default}]${default} $*"
+		echo -en "$*"
 	fi
 	fn_sleep_time
 }
 
 fn_print_ok_nl() {
 	if [ "${commandaction}" ]; then
-		echo -en "${bold}${creeol}[${green}  OK  ${default}]${default} ${commandaction} ${selfname}: $*"
+		echo -en "${commandaction} ${selfname}: $*"
 	else
-		echo -en "${bold}${creeol}[${green}  OK  ${default}]${default} $*"
+		echo -en "$*"
 	fi
 	fn_sleep_time
 	echo -en "\n"

lgsm/modules/fix.sh

@@ -58,7 +58,7 @@ apply_post_install_fix=(av kf kf2 lo ro samp ut2k4 ut ut3)
 # validate registered fixes for safe development
 for fix in "${apply_pre_start_fix[@]}" "${apply_post_install_fix[@]}"; do
 	if ! fn_exists_fix "${fix}"; then
-		fn_print_fail_nl "fix_${fix}.sh is registered but doesn't exist. Typo or did you miss to modify core_functions.sh?"
+		fn_print_fail_nl "fix_${fix}.sh is registered but doesn't exist."
 		exitcode=1
 		core_exit.sh
 	fi