Allow setting server url in settings

Caps/Views/CapRowView.swift

@@ -14,10 +14,6 @@ struct CapRowView: View {
     @EnvironmentObject
     var database: Database
 
-    var imageUrl: URL {
-        database.serverUrl.appendingPathComponent(cap.mainImagePath)
-    }
-
     var body: some View {
         HStack(alignment: .center) {
             VStack(alignment: .leading, spacing: 0) {

Caps/Views/SettingsView.swift

@@ -18,6 +18,18 @@ struct SettingsView: View {
     var body: some View {
         NavigationView {
             VStack(alignment: .leading, spacing: 3) {
+                Text("Server")
+                    .font(.footnote)
+                    .textCase(.uppercase)
+                    .foregroundColor(.secondary)
+                    .padding(.top)
+                Group {
+                    FancyTextField(
+                        text: $database.serverPath,
+                        icon: .globe, 
+                        placeholder: "Server url")
+                    .keyboardType(.URL)
+                }.padding(.horizontal)
                 Text("Authentication")
                     .font(.footnote)
                     .textCase(.uppercase)
@@ -25,6 +37,7 @@ struct SettingsView: View {
                     .padding(.top)
                 Group {
                     FancyTextField(text: $serverAuthenticationKey, icon: .key, placeholder: "Server key")
+                        .keyboardType(.asciiCapable)
                 }.padding(.horizontal)
                 Text("Statistics")
                     .font(.footnote)