feat(auth): add web captcha handling

- replace manual captcha screen with WebView-based VK captcha flow
- handle captcha error 14 by showing the captcha overlay and retrying with success_token
- pass captcha redirect/result state through AppSettings
- remove old captcha ViewModel, navigation, validation, and DI
- add ACRA crash reporting
- add WIP message edit mode UI/state
- update Gradle wrapper, SDK config, and dependencies

core/model/src/main/kotlin/dev/meloda/fast/model/api/data/VkWidgetData.kt

@@ -5,7 +5,7 @@ import com.squareup.moshi.JsonClass
 
 @JsonClass(generateAdapter = true)
 data class VkWidgetData(
-    val id: Long
+    val id: Long?
 ) : VkAttachmentData {
 
     fun toDomain() = VkWidgetDomain(id)

core/model/src/main/kotlin/dev/meloda/fast/model/api/domain/VkWidgetDomain.kt

@@ -3,7 +3,7 @@ package dev.meloda.fast.model.api.domain
 import dev.meloda.fast.model.api.data.AttachmentType
 
 data class VkWidgetDomain(
-    val id: Long
+    val id: Long?
 ) : VkAttachment {
 
     override val type: AttachmentType = AttachmentType.WIDGET

core/model/src/main/kotlin/dev/meloda/fast/model/api/requests/OAuthRequest.kt

@@ -12,7 +12,8 @@ data class AuthDirectRequest(
     val validationCode: String? = null,
     val captchaSid: String? = null,
     val captchaKey: String? = null,
-    val trustedHash: String? = null
+    val trustedHash: String? = null,
+    val successToken: String? = null
 ) {
 
     val map
@@ -31,6 +32,7 @@ data class AuthDirectRequest(
                 captchaSid?.let { this["captcha_sid"] = it }
                 captchaKey?.let { this["captcha_key"] = it }
                 trustedHash?.let { this["trusted_hash"] = it }
+                successToken?.let { this["success_token"] = it }
             }
 }