Zoom level not persisted across restarts or section changes

[muescha]

Description

The zoom level (set via cmd++ and cmd+-) is not properly saved and restored. This makes IPTVnator unusable for visually impaired users who need a larger font size.

Bug — Zoom resets on section change

1. Set a custom zoom level
2. Close and reopen IPTVnator
3. The correct zoom level appears briefly on the last-viewed section or sometimes is not persisted at all
4. Switch to any other section (e.g. from Favourites to All Channels)
5. → Zoom resets to default

This inconsistency (zoom correct on first view, then reset on navigation) suggests the value is stored but not applied consistently across all components.

Bug — Window position not remembered (regression)

#205 was reported and marked as fixed in v0.17.1, but the behaviour has regressed in v0.21.0: the window always reopens at the default position and size, not where it was last placed.

Feature requests

• Persist zoom level across restarts and section changes
• Persist window position and size across restarts (see also: Saving window sizes #205)
• Option to always open maximized (useful for TV/living room setups and visually impaired users)

Environment

• OS: macOS
• IPTVnator version: 0.21.0