Subject: Bug Report: Column width allocation and missing horizontal scroll on iPad

Description of Issue:

There is a layout and navigation bug on the iPad version of the app specifically within the Watchlist "Details" view. When customizing the view to display multiple data columns, the column widths do not scale correctly, and horizontal scrolling is completely broken, preventing access to the selected data.

Steps to Reproduce:

1. Open the app on an iPad and navigate to a Watchlist.
2. Ensure the view is set to the Details tab.
3. Open the Customise details menu.
4. Select exactly 4 data points to display (for example: Shares, Avg. cost/share, Price, and Total gain).
5. Save the customization and return to the main Watchlist view.

Expected Behavior:

The app should either dynamically adjust the column widths so all 4 columns fit neatly on the iPad screen, or it should enable horizontal swiping so I can scroll to the right to view the columns that are off-screen.

Actual Behavior:
The first selected column (e.g., "Shares") disproportionately expands to consume almost the entire width of the screen. Because of this, only one other column is even partially visible. Crucially, the horizontal swipe/scroll function does not work at all, meaning it is impossible to view the remaining selected columns.

Device Information:

• Device: iPad
• Orientation: Landscape / Portrait (Issue appears to be width-allocation related)