add back slash prefix to api routes

src/App/Repositories/AccountsApiRepository.cs

@@ -18,7 +18,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "accounts";
+        protected override string ApiRoute => "/accounts";
 
         public virtual async Task<ApiResult> PostRegisterAsync(RegisterRequest requestObj)
         {

src/App/Repositories/CipherApiRepository.cs

@@ -18,7 +18,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "ciphers";
+        protected override string ApiRoute => "/ciphers";
 
         public virtual async Task<ApiResult<CipherResponse>> PostAttachmentAsync(string cipherId, byte[] data,
             string fileName)

src/App/Repositories/ConnectApiRepository.cs

@@ -20,7 +20,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "connect";
+        protected override string ApiRoute => "/connect";
 
         public virtual async Task<ApiResult<TokenResponse>> PostTokenAsync(TokenRequest requestObj)
         {

src/App/Repositories/DeviceApiRepository.cs

@@ -18,7 +18,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "devices";
+        protected override string ApiRoute => "/devices";
 
         public virtual async Task<ApiResult> PutTokenAsync(string identifier, DeviceTokenRequest request)
         {

src/App/Repositories/SettingsApiRepository.cs

@@ -17,7 +17,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "settings";
+        protected override string ApiRoute => "/settings";
 
         public virtual async Task<ApiResult<DomainsResponse>> GetDomains(bool excluded = false)
         {

src/App/Repositories/SyncApiRepository.cs

@@ -17,7 +17,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "sync";
+        protected override string ApiRoute => "/sync";
 
         public virtual async Task<ApiResult<SyncResponse>> Get()
         {

src/App/Repositories/TwoFactorApiRepository.cs

@@ -16,7 +16,7 @@ namespace Bit.App.Repositories
             : base(connectivity, httpService, tokenService)
         { }
 
-        protected override string ApiRoute => "two-factor";
+        protected override string ApiRoute => "/two-factor";
 
         public virtual async Task<ApiResult> PostSendEmailLoginAsync(TwoFactorEmailRequest requestObj)
         {