[Popover] data-bs-content="true"/"false" auto-converted to boolean causes TypeError, but "true"/"false" are valid string content.

[Andyz0103]

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

When using data-bs-content="true" (or "false") on an element with data-bs-toggle="popover", Bootstrap internally converts the string "true" to the boolean true, causing _typeCheckConfig to throw:

TypeError: POPOVER: Option "content" provided type "boolean" but expected type "(null|string|element|function)".

This prevents users from displaying the literal string "true" or "false" — a common and valid use case (e.g., showing boolean-like values in tables, configs, JSON previews).

Reduced test cases

1. Add this HTML:
   <button type="button" class="btn btn-secondary" data-bs-toggle="popover" data-bs-content="true"> Show "true" </button>

2. Initialize popovers (e.g., via new bootstrap.Popover() or auto-init via data-bs-toggle).

3. Observe console error:
   TypeError: POPOVER: Option "content" provided type "boolean" but expected type "(null|string|element|function)".

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome

What version of Bootstrap are you using?

v5.2.1