textinput v2: 0 Width breaks placeholders

[ShadiestGoat]

Describe the bug
When creating a textinput model with a Width = 0 & a placeholder, only the first character of the placeholder works

Setup
Please complete the following information along with version numbers, if applicable.

• OS Arch
• Shell zsh
• Terminal Emulator kitty
• Terminal Multiplexer n/a

To Reproduce
Steps to reproduce the behavior:

1. `ti := textinput.New()
2. ti.SetWidth(0)
3. ti.Placeholder = "Something"
4. ti.View()
5. Placeholder will only have 1 char

Source Code
n/a

Expected behavior
The full placeholder to be visible, as per this commnent
"if there is no width, the placeholder can be any length"

Screenshots

Real:

Expected: