ci: setup application helms in the monorepo

Description

Move away from app-helm repo, and add helms into the monorepo - easier management for app and deployment.

Related issues

https://code.vereign.com/Infrastructure/devops/-/issues/611

Testing

Manual testing of pipelines.

Checklist

• I have updated the documentation (if necessary)
• I have added unit tests for new functionality (if applicable)
• My code follows the style guidelines of this project
• I have tested this code on my local machine before submitting this MR

Reviewers

@georgi.todorov

Additional Notes

• No additional notes

apps/gateway/deployment/ci-cd/helm/templates/ingress.yaml

@@ -19,7 +19,7 @@ spec:
     - host: {{ .Values.ingress.frontendDomain }}
       http:
         paths:
-          - path: /{{ .Release.Namespace }}/{{ template "app.path" . }}(/|$)(.*)
+          - path: /{{ .Release.Namespace }}-{{ template "app.path" . }}(/|$)(.*)
             pathType: Prefix
             backend:
               service: