App polish part 3 (#1135)

- Add an animation to long press on messages.
- Make emojis bigger on the reactions picker screen.
- Remove quote menu action.
- Fix emoji picker handle overlapping focused search field.
- Update launch, splash and onboarding screens.
- Use elevation tokens in Forms.
- Move the cancel button on the Start Chat flow.

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/View/DeveloperOptionsScreen.swift

@@ -65,7 +65,7 @@ struct DeveloperOptionsScreen: View {
             }
         }
         .overlay(effectsView)
-        .elementFormStyle()
+        .compoundForm()
         .navigationTitle(L10n.commonDeveloperOptions)
         .navigationBarTitleDisplayMode(.inline)
     }