Added ability to zoom profile pic

Closes: #149
Changelog-Added: Added the ability to zoom profile pic on profile page

damus/Views/ProfilePicView.swift

@@ -74,7 +74,6 @@ struct InnerProfilePicView: View {
         .clipShape(Circle())
         .overlay(Circle().stroke(highlight_color(highlight), lineWidth: pfp_line_width(highlight)))
     }
-    
 }
 
 struct ProfilePicView: View {

damus/Views/ProfileView.swift

@@ -113,11 +113,13 @@ struct EditButton: View {
 
 struct ProfileView: View {
     let damus_state: DamusState
+    let zoom_size: CGFloat = 350
     
     @State private var selected_tab: ProfileTab = .posts
     @StateObject var profile: ProfileModel
     @StateObject var followers: FollowersModel
     @State private var showingEditProfile = false
+    @State var is_zoomed: Bool = false
     
     @Environment(\.dismiss) var dismiss
     @Environment(\.colorScheme) var colorScheme
@@ -160,6 +162,12 @@ struct ProfileView: View {
             
             HStack(alignment: .center) {
                 ProfilePicView(pubkey: profile.pubkey, size: PFP_SIZE, highlight: .custom(Color.black, 2), profiles: damus_state.profiles)
+                    .onTapGesture {
+                        is_zoomed.toggle()
+                    }
+                    .sheet(isPresented: $is_zoomed) {
+                        ProfilePicView(pubkey: profile.pubkey, size: zoom_size, highlight: .custom(Color.black, 2), profiles: damus_state.profiles)
+                    }
                 
                 Spacer()