chore: remove unused files, rename the github action

.github/ISSUE_TEMPLATE.md

@@ -1,57 +0,0 @@
-<!--
-ATTENTION! WE WILL HAVE TO CLOSE THIS ISSUE if you don't provide the needed information.
-Please read https://github.com/akveo/ngx-admin/blob/master/CONTRIBUTING.md before opening an issue.
--->
-
-### Issue type
-
-**I'm submitting a ...**  (check one with "x")
-
-* [ ] bug report
-* [ ] feature request
-* [ ] question about the decisions made in the repository
-
-### Issue description
-
-**Current behavior:**
-<!-- Describe how the bug manifests. -->
-
-**Expected behavior:**
-<!-- Describe what the behavior would be without the bug. -->
-
-**Steps to reproduce:**
-<!--  Please explain the steps required to duplicate the issue, especially if you are able to provide a sample application. -->
-
-**Related code:**
-<!-- 
-If you are able to illustrate the bug or feature request with an example, please provide a sample application via one of the following means:
-
-A sample application via GitHub
-
-StackBlitz (https://stackblitz.com)
-
-Plunker (http://plnkr.co/edit/cpeRJs?p=preview)
-
--->
-
-```
-insert short code snippets here
-```
-
-### Other information:
-
-**npm, node, OS, Browser**
-```
-<!--
-Node, npm: `node --version` and `npm --version`
-OS: Windows (7/8/10). Linux (incl. distribution). macOS (El Capitan? Sierra?)
-Browser: Chrome/Safari/Firefox/etc?
--->
-```
-
-**Angular, Nebular**
-```
-<!--
-Check your `package-lock.json` or locate a `package.json` in the `node_modules` folder.
--->
-```

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +0,0 @@
-### Please read and mark the following check list before creating a pull request (check one with "x"):
-
- - [ ] I read and followed the [CONTRIBUTING.md](https://github.com/akveo/ngx-admin/blob/master/CONTRIBUTING.md) guide.
- - [ ] I read and followed the [New Feature Checklist](https://github.com/akveo/ngx-admin/blob/master/DEV_DOCS.md#new-feature-checklist) guide.
- 
- #### Short description of what this resolves:

.github/workflows/azureCliDeployMint.yml

@@ -1,4 +1,4 @@
-name: Deploy to demo (azure storage)
+name: Deploy to demo-mint (azure storage)
 
 on:
   push: