[codebase]: handle zpmod

[ss-o]

Due to changes in code minor changes and checks has to be introduced to handle zpmod with zi.

• Adjust Zi loader and Zi to inform the user about zpmod. e.g: loader loads zpmod if it is installed automatically, however, the user is advised on how to load the zpmod module in zshrc, this should be avoided and handled correctly.

• Check for .config/user-dirs.dirs and .config/user-dirs.locale files and assign xdg dir accordingly (compatibility maintenance).

[github-actions]

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