Some js links using `href="#"` override the URL when clicked

[RobQuincey-DC]

Some JS links in the app with href="#" override the URL (which acts as the map permalink) when clicked. This is likely because the script which does whatever it needs to do does not call e.preventDefault() to prevent the URL from updating to #

Steps to reproduce

• Click an affected link (e.g. 'Collapse all' in the layer control)
• The URL in the address bar updates to https://[domain]/#

Affected links This list is not exhaustive. If you find any others, add it to the list.

• 'Collapse all' in the layer control
• Cookie preference in help menu
• Info click list results (although it seems to refresh immediately after)
  • This is the list that comes up when you click a point on the map that has multiple data items in it

[Matt-W-DC]

Fixed this issue for 'collapse all' in the layer control and info click list results in linked branch 'bugfix-link-overrides-URL-306' by adding e.preventDefault().

[RobQuincey-DC]

@Matt-W-DC This is great, thanks. Did you manage to find the one for the Cookie control. Its a funny one to test locally as you need to add some config settings for it to actually appear. I think the code itself is in app.ts line 55