Clean up some build warnings (#2929)

* Replace deprecated rememberPlainTooltipPositionProvider

* Remove superfluous when branch

This when is marked as exhaustive.

* Replace deprecated LibrariesContainer call

AboutLibraries now wants us to produce the libraries ourselves.

* Replace deprecated ClipboardManager with Clipboard

Clipboard uses suspend functions, hence the coroutine scope addition.

* Use multi-dollar strs to simplify GraphQL queries

These have been available since Kotlin 2.1.

* Remove various redundant casts & conversions

- WebViewScreenContent: loadingState is in the LoadingState.Loading
  branch, no need to cast at all
- Bangumi: username is not modified, make val
- Kavita: token is already a String
- PagerViewerAdapter: insertPageLastPage is already null-checked
- PagerViewerAdapter: use reified filterIsInstance
- ReaderViewModel: chapter IDs are already Longs
- CloudflareInterceptor: webview is smart-cast to non-null here

* Replace deprecated MenuAnchorType

Literally just a typealias for ExposedDropdownMenuAnchorType anyway.

* OptimizeNonSkippingGroups is enabled by default

* Suppress shadowing warning

This is explicitly intentional according to the KDocs.

* Migrate Context Receivers to Context Parameters

Requires changing the compiler arg, but that is part of the migration:

https://blog.jetbrains.com/kotlin/2025/04/update-on-context-parameters

Apparently, the only visible change is that names are required now.
"_" can be used for anonymous context parameters.

* Fix expression bodies with explicit return

Naming conflict resolved by aliasing.

From 2.4/2.5 onward, these will only be allowed with explicit return
types, or have to be turned into a block body. I opted for the latter
since the function is reasonably dense already.

see: https://youtrack.jetbrains.com/issue/KTLC-288

* Suppress deprecation of non-AutoMirrored icons

We use these arrows for navigation in the Upcoming screen.
I strongly doubt the AutoMirrored versions would make sense for our
use-case.

* Explicitly opt-in to new annotation default rules

affects the following annotated value-parameters:
- Preference.SliderPreference.steps (`@IntRange`)
- ReaderViewModel.State.brightnessOverlayValue (`@IntRange`)
- ReadingMode.iconRes (`@DrawableRes`)
- MigrationListScreenModel.Dialog.Progress.progress (`@FloatRange`)

see: https://youtrack.jetbrains.com/issue/KT-73255
see: https://github.com/Kotlin/KEEP/blob/change-defaulting-rule/proposals/annotation-target-in-properties.md

Warning message was the following:

    This annotation is currently applied to the value parameter only, but in the future it will also be applied to field.
    - To opt in to applying to both value parameter and field, add '-Xannotation-default-target=param-property' to your compiler arguments.
    - To keep applying to the value parameter only, use the '@param:' annotation target.

core/common/src/main/kotlin/eu/kanade/tachiyomi/network/OkHttpExtensions.kt

@@ -134,18 +134,18 @@ fun OkHttpClient.newCachelessCallWithProgress(request: Request, listener: Progre
     return progressClient.newCall(request)
 }
 
-context(Json)
+context(_: Json)
 inline fun <reified T> Response.parseAs(): T {
     return decodeFromJsonResponse(serializer(), this)
 }
 
-context(Json)
+context(json: Json)
 fun <T> decodeFromJsonResponse(
     deserializer: DeserializationStrategy<T>,
     response: Response,
 ): T {
     return response.body.source().use {
-        decodeFromBufferedSource(deserializer, it)
+        json.decodeFromBufferedSource(deserializer, it)
     }
 }
 

core/common/src/main/kotlin/eu/kanade/tachiyomi/network/interceptor/CloudflareInterceptor.kt

@@ -87,7 +87,7 @@ class CloudflareInterceptor(
         executor.execute {
             webview = createWebView(originalRequest)
 
-            webview?.webViewClient = object : WebViewClient() {
+            webview.webViewClient = object : WebViewClient() {
                 override fun onPageFinished(view: WebView, url: String) {
                     fun isCloudFlareBypassed(): Boolean {
                         return cookieManager.get(origRequestUrl.toHttpUrl())
@@ -123,7 +123,7 @@ class CloudflareInterceptor(
                 }
             }
 
-            webview?.loadUrl(origRequestUrl, headers)
+            webview.loadUrl(origRequestUrl, headers)
         }
 
         latch.awaitFor30Seconds()