add excersise subviews

Werkout_ios/APIModels/Equipment.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-struct Equipment: Codable {
+struct Equipment: Codable, Identifiable, Equatable {
     let id: Int
     let name, createdAt, updatedAt: String
     let is_weight: Bool?

Werkout_ios/APIModels/Exercise.swift

@@ -37,19 +37,24 @@ struct SupersetExercise: Identifiable, Codable, Equatable, Hashable {
     }
 }
 
-struct Exercise: Identifiable, Codable, Equatable {
+struct Exercise: Identifiable, Codable, Equatable, Hashable {
     static func == (lhs: Exercise, rhs: Exercise) -> Bool {
         lhs.id == rhs.id
     }
     
+    public func hash(into hasher: inout Hasher) {
+        return hasher.combine(id)
+    }
+    
     let id: Int
     let equipment: [Equipment]
     let muscles: [Muscle]
     let audioURL, videoURL, createdAt, updatedAt: String
-    let name, description, side: String
+    let name, description: String
+    let side, jointsUsed, movementPatterns: String?
     let isTwoDumbbells, isTrackableDistance, isAlternating, isWeight: Bool
     let isDistance, isDuration, isReps: Bool
-    let jointsUsed, movementPatterns, equipmentRequired, muscleGroups: String
+    let equipmentRequired, muscleGroups: String?
     let synonyms: String?
 
     enum CodingKeys: String, CodingKey {
@@ -74,8 +79,8 @@ struct Exercise: Identifiable, Codable, Equatable {
     }
     
     var extName: String {
-        if side.count > 0 {
-            var returnString = name + " - " + side
+        if side != nil && side!.count > 0 {
+            var returnString = name + " - " + side!
             returnString = returnString.replacingOccurrences(of: "_", with: " ")
             return returnString.capitalized
         }
@@ -83,10 +88,10 @@ struct Exercise: Identifiable, Codable, Equatable {
     }
     
     var spacedMuscleGroups: String {
-        return muscleGroups.replacingOccurrences(of: ",", with: ", ")
+        return muscleGroups?.replacingOccurrences(of: ",", with: ", ") ?? ""
     }
     
     var spacedEquipmentRequired: String {
-        return equipmentRequired.replacingOccurrences(of: ",", with: ", ")
+        return equipmentRequired?.replacingOccurrences(of: ",", with: ", ") ?? ""
     }
 }

Werkout_ios/APIModels/Muscle.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-struct Muscle: Codable {
+struct Muscle: Codable, Identifiable, Equatable {
     let id: Int
     let name, createdAt, updatedAt: String