Fixes & improvements to Jellyseer integration (#783)

## Description
Fixes several bugs and makes it easier to log in to a Jellyseer instance

- Fix initial focus & next focus on the add server dialog
- Don't use an API key for non-API key auth (credit to @voc0der in #734
for suggesting this)
- Show trailers for TV shows
- Fix incorrect/missing similar and recommended rows for both movies &
TV shows
- Allow empty password for Jellyfin users without a password

Log in will now try variations of the input URL such as add the protocol
and/or default port. This is similar to the regular Jellyfin login
process.

### Related issues
Fixes #778
Fixes #750
Fixes #740
Might help with #747
Fixes
https://github.com/damontecres/Wholphin/issues/764#issuecomment-3801324648

app/src/test/java/com/github/damontecres/wholphin/test/TestSeerr.kt

@@ -0,0 +1,65 @@
+package com.github.damontecres.wholphin.test
+
+import com.github.damontecres.wholphin.ui.setup.seerr.createUrls
+import org.junit.Assert
+import org.junit.Test
+
+class TestSeerr {
+    @Test
+    fun testCreateUrls() {
+        val urls =
+            createUrls("jellyseerr.com")
+                .map { it.toString() }
+
+        val expected =
+            listOf(
+                "http://jellyseerr.com/api/v1",
+                "https://jellyseerr.com/api/v1",
+                "http://jellyseerr.com:5055/api/v1",
+                "https://jellyseerr.com:5055/api/v1",
+            )
+        Assert.assertEquals(expected, urls)
+    }
+
+    @Test
+    fun testCreateUrls2() {
+        val urls =
+            createUrls("https://jellyseerr.com")
+                .map { it.toString() }
+
+        val expected =
+            listOf(
+                "https://jellyseerr.com/api/v1",
+                "https://jellyseerr.com:5055/api/v1",
+            )
+        Assert.assertEquals(expected, urls)
+    }
+
+    @Test
+    fun testCreateUrls3() {
+        val urls =
+            createUrls("http://jellyseerr.com")
+                .map { it.toString() }
+
+        val expected =
+            listOf(
+                "http://jellyseerr.com/api/v1",
+                "http://jellyseerr.com:5055/api/v1",
+            )
+        Assert.assertEquals(expected, urls)
+    }
+
+    @Test
+    fun testCreateUrls4() {
+        val urls =
+            createUrls("jellyseerr.com:5055")
+                .map { it.toString() }
+
+        val expected =
+            listOf(
+                "http://jellyseerr.com:5055/api/v1",
+                "https://jellyseerr.com:5055/api/v1",
+            )
+        Assert.assertEquals(expected, urls)
+    }
+}