## Description
When the input opens, the cursor is placed two columns to the right
after the default prompt, but should be one.
The cause is the `vim.api.nvim_win_set_cursor` takes (row, col) with the
base of (1, 0) */I hate this/*
## Related Issue(s)
No related issue created.
## Screenshots
`:lua Snacks.input({ default = "aaa" }, function () end )`
gives the input as "aaa |" (where pipe shows the cursor position)
Co-authored-by: Igor Iatsenko <igor.iatsenko@here.com>
## Description
1. Trim the trailing `:` from the prompt. The `:` is usually added to
`vim.ui.input`, since it is by default displayed in the cmdline, where a
separater is useful. As a window title, however, it serves no purpose;
adding a `:` to a title is generally disrecommended.
2. Disable cursorline in the input window by default. Since the input
window by default has a height of 1, the cursorline is not helpful at
all, and only results in an inconsistently looking appearance.
3. In case the user disables the icon by setting it to `""`, there is
excess padding which looks weird (and also does not align with a window
title set to `left`). Thus added a check for an empty string and adjust
the padding accordingly.
4. Set `snacks_input` as default filetype for the input buffer, in line
with how the other modules of `snacks` work.
All four changes are a separate commit, in case one of them is for some
reason not desirable.
## Screenshots
before
after
