Refactor notifications to Kotlin & paging (#4026)

This refactors the NotificationsFragment and related classes to Kotlin &
paging.
While trying to preserve as much of the original behavior as possible,
this adds the following improvements as well:
- The "show notifications filter" preference was added again
- The "load more" button now has a background ripple effect when clicked
- The "legal" report category of Mastodon 4.2 is now supported in report
notifications
- Unknown notifications now display "unknown notification type" instead
of an empty line

Other code quality improvements:
- All views from xml layouts are now referenced via ViewBindings
- the classes responsible for showing system notifications were moved to
a new package `systemnotifications` while the classes from this
refactoring are in `notifications`
- the id of the local Tusky account is now called `tuskyAccountId` in
all places I could find

closes https://github.com/tuskyapp/Tusky/issues/3429

---------

Co-authored-by: Zongle Wang <wangzongler@gmail.com>

app/src/main/java/com/keylesspalace/tusky/network/MastodonApi.kt

@@ -137,15 +137,18 @@ interface MastodonApi {
     ): Response<List<Status>>
 
     @GET("api/v1/notifications")
+    @Throws(Exception::class)
     suspend fun notifications(
         /** Return results older than this ID */
-        @Query("max_id") maxId: String?,
+        @Query("max_id") maxId: String? = null,
         /** Return results newer than this ID */
-        @Query("since_id") sinceId: String?,
+        @Query("since_id") sinceId: String? = null,
+        /** Return results immediately newer than this ID */
+        @Query("min_id") minId: String? = null,
         /** Maximum number of results to return. Defaults to 15, max is 30 */
-        @Query("limit") limit: Int?,
+        @Query("limit") limit: Int? = null,
         /** Types to excludes from the results */
-        @Query("exclude_types[]") excludes: Set<Notification.Type>?
+        @Query("exclude_types[]") excludes: Set<Notification.Type>? = null
     ): Response<List<Notification>>
 
     /** Fetch a single notification */