FEAT: extend cyclic navigation

[mavonx]

Is your feature request related to a problem?

The cyclic navigation feature introduced in #1215 was applied to some parts of the TUI, but not all.
Currently, several menus still use bounded navigation.

Describe the solution you'd like

Implement wrap-around navigation for menu selections.

• Moving upward from the first item should select the last item.
• Moving downward from the last item should select the first item.

Affected areas (need update):

• updateMenu in tui/settings.go
• updateGeneral in tui/settings_general.go
• updateAccounts in tui/settings_accounts.go
• updateMailingLists in tui/settings_lists.go
• updateTheme in tui/settings_theme.go
• Update in tui/filepicker.go
• Update in tui/email_view.go

Describe alternatives you've considered

Keeping the current bounded navigation behavior where selection stops at the edges.
However, wrap-around navigation provides a smoother experience and reduces unnecessary input.

Additional context

This issue should be labeled as a good first issue.

[floatpanebot]

Thanks for the suggestion!

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