feat: show success toast when segment was submitted successfully

app/src/main/java/com/github/libretube/ui/dialogs/SubmitSegmentDialog.kt

@@ -91,6 +91,7 @@ class SubmitSegmentDialog : DialogFragment() {
                 RetrofitInstance.externalApi
                     .submitSegment(videoId, startTime, endTime, category, userAgent, uuid, duration)
             }
+            context.toastFromMainDispatcher(R.string.segment_submitted)
         } catch (e: Exception) {
             Log.e(TAG(), e.toString())
             context.toastFromMainDispatcher(e.localizedMessage.orEmpty())

app/src/main/res/values/strings.xml

@@ -451,6 +451,7 @@
     <string name="same_as_fullscreen">Same as fullscreen</string>
     <string name="playback_during_call">Continue playback during phone call</string>
     <string name="playback_during_call_summary">Note that this also affects the app to not handle any kind of audio focus anymore.</string>
+    <string name="segment_submitted">Segment submitted</string>
 
     <!-- Backup & Restore Settings -->
     <string name="import_subscriptions_from">Import subscriptions from</string>