[Staging] Browser Back button behaviour on Search page

[batpad]

Issue

This is pretty minor, but just to have it filed. The browser back button does not work as expected after clicking on for eg. "View all Emergencies" on the search page.

URL

https://go-stage.ifrc.org/search?keyword=switzerland

Steps to reproduce

Click on View All Emergencies. Then click the browser back button.

Expected: To be taken back to search results page for Switzerland

Actual: For me, this takes me back to my browser default start page, which is really strange. At the very least, it should keep me on the GO site.

Expected behaviour

The browser back button should work exactly like the "Go Back" button on the page after clicking "View all Emergencies". The "Go Back" button takes me back to the search results page, and I'd expect my browser back button to do the same.

Criticality/Urgency

Low. The browser back button not working as expected is a pet peeve of mine, but I wouldn't prioritize over other urgent things.

This does seem like it might be a bit complex to fix since we don't actually change the URL between the search results page and clicking a "View all Emergencies" or so. I think an ideal solution might involve having an explicit URL state change when navigating to "View all Emergencies" though I can see how that might involve a larger refactor.

Any-how, just filing this to note.

cc @frozenhelium @tovari

[nanometrenat]

@batpad is work still required here, post-rewrite? Cheers