some fixes

[djensenius]

This pull request improves the robustness and flexibility of the tmux Catppuccin status modules by introducing a shared status_module.conf for consistent styling, updating references to this new configuration, and adding new key bindings for the speedtest module. The changes ensure modules are only sourced if present, preventing errors, and enhance customization options.

Shared status module configuration and styling:

• Added a new tmux/status_module.conf file that centralizes and standardizes status module styling, including color and background settings for icons and text, and ensures modules visually "connect" when required.
• Updated tmux/custom_modules/ctp_speedtest.conf to conditionally source the shared status_module.conf only if it exists, improving robustness and preventing errors when the file is missing.
• Updated tmux/post-catppuccin.conf to reference the new location of status_module.conf for the outdated packages module, ensuring consistency with the new structure.

Speedtest module enhancements:

• Added new key bindings @speedtest_detail_key and @speedtest_compare_key to tmux/tmux.conf for improved interaction with the speedtest module.