Update plugin ktlint to v12.1.0 (#2200)

* Update plugin ktlint to v12.1.0

* Run `./gradlew ktlintFormat` and fix some issues manually.

* Fix other issues reproted by Ktlint

* Limit false positives, KtLint removes unnecessary curly brace in String templates.

* Remove useless Unit

* Minor improvements over ktlint changes

* Restore `AlertDialogContent` behaviour

* Update screenshots

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Benoit Marty <benoit@matrix.org>
Co-authored-by: Jorge Martín <jorgem@element.io>
Co-authored-by: ElementBot <benoitm+elementbot@element.io>

.editorconfig

@@ -17,7 +17,7 @@ ij_wrap_on_typing = false
 # Ktlint rule, for more information see https://pinterest.github.io/ktlint/faq/#why-is-editorconfig-property-disabled_rules-deprecated-and-how-do-i-resolve-this
 ktlint_standard_wrapping = disabled
 ktlint_standard_trailing-comma-on-call-site = disabled
-
+ktlint_standard_spacing-between-declarations-with-annotations = disabled
 
 [*.java]
 ij_java_align_consecutive_assignments = false