Integrates Ubuntu 24.04LTS default bash config and fixes anonymous functions to work properly in bash.

.rc.d/icu.sh

@@ -1,4 +1,4 @@
-function {
+function anon() {
   local icu_path=/opt/homebrew/opt/icu4c
   local bin_path=$icu_path/bin
   local sbin_path=$icu_path/sbin
@@ -9,3 +9,4 @@ function {
     path=($sbin_path $path)
   fi
 }
+unset -f anon