[Bug] FPDFException when metadata values exceed available horizontal space in multi_cell

[surabhis16]

Description

When using multi_cell() with long text values in metadata dictionaries, the library raises FPDFException: Not enough horizontal space to render a single character instead of gracefully handling or truncating the text.

Expected Behavior

The library should either:

1. Automatically wrap/truncate text that exceeds available width
2. Provide a clearer error message indicating the text is too long
3. Offer a parameter to control overflow behavior (truncate, wrap, raise error)

Actual Behavior

Raises: fpdf.errors.FPDFException: Not enough horizontal space to render a single character

[surabhis16]

@Ujjwal-Bajpayee Could you please assign this to me? I’ve already fixed it while running locally and can open a PR right away.

[surabhis16]

@Ujjwal-Bajpayee please look into #38, thanks!