[Bug]: (v3) Duplicate id in <th> if multiple sections have cookieTable with same columns

[EreMaijala]

Expected Behavior

Table headers should have unique id attributes (or no id unless necessary)

Current Behavior

All th elements in the cookieTable get the id attribute from the header value (which could also make it invalid as an id) (see https://github.com/orestbida/cookieconsent/blob/v3.0-beta/src/core/modals/preferencesModal.js#L343). When there are more than one section with a table that has same header values, the id's get duplicated.

Steps to reproduce

1. Use the included playground
2. Duplicate Analytics Cookies section with a new title
3. Open the Preferences window
4. Observe duplicate id attributes in the cookie tables

Proposed fix or additional info.

No response

Version

3.0.0-rc13

On which browser do you see the issue?

Firefox, Chrome

[orestbida]

fixed by c2623fb