Add filtering based off of "active" query param in Web UI

[wbh1]

Closes: #1867

This is my first foray into Elm, so please let me know if I missed anything :)

@stuartnelson3 -- I'm not sure who to add as a reviewer, so just tagging you.

Thanks!

[stuartnelson3]

Looks awesome!

Do you want to add a test for generateQueryString to show that setting showActive to Just False results in active=false in the query string?

[stuartnelson3]

👌

[stuartnelson3]

I was just looking at this and thinking about that param name, thanks for fixing this!

[wbh1]

Looks awesome!

Do you want to add a test for generateQueryString to show that setting showActive to Just False results in active=false in the query string?

I've added the test for this :) I also went ahead and removed one of the tests that was basically a duplicate.

test "should default silenced & inhibited parameters to false and active to true if showSilenced is Nothing" <|
            \() ->
                Expect.equal "?silenced=false&inhibited=false&active=true"
                    (Utils.Filter.generateQueryString { receiver = Nothing, group = Nothing, customGrouping = False, text = Nothing, showSilenced = Nothing, showInhibited = Nothing, showActive = Nothing })

tested the same thing as

test "should not render keys with Nothing value except the silenced, inhibited, and active parameters, which default to false, false, true, respectively." <|
            \() ->
                Expect.equal "?silenced=false&inhibited=false&active=true"
                    (Utils.Filter.generateQueryString { receiver = Nothing, group = Nothing, customGrouping = False, text = Nothing, showSilenced = Nothing, showInhibited = Nothing, showActive = Nothing })

[stuartnelson3]

Thanks!