Add titles for the issue templates.

Author: tim-schilling

.github/ISSUE_TEMPLATE/admin-request.yml

@@ -1,6 +1,7 @@
 name: Admin request
 description: Have a question, concern or request for the admins?
 labels: ["Admin request"]
+title: "📬 [REQUEST] - <title>"
 assignees: 'django-commons/admins'
 body:
   - type: textarea

.github/ISSUE_TEMPLATE/new-admin.yml

@@ -1,6 +1,7 @@
 name: New admin
 description: Apply to be a Django Commons administrator with the following form.
 labels: ["New admin"]
+title: "🏗️ [ADMIN] - <your handle>"
 assignees: 'django-commons/admins'
 body:
   - type: markdown

.github/ISSUE_TEMPLATE/new-member.yml

@@ -1,6 +1,7 @@
 name: New member
 description: Become a Django Commons member with the following form.
 labels: ["New member"]
+title: "✋ [MEMBER] - <your handle>"
 assignees: 'django-commons/admins'
 body:
   - type: markdown

.github/ISSUE_TEMPLATE/transfer-project-in.yml

@@ -1,6 +1,7 @@
 name: Transfer project in
 description: Transfer a project into Django commons with the following form.
 labels: ["Transfer project in"]
+title: "🛬 [INBOUND] - <project>"
 assignees: 'django-commons/admins'
 body:
   - type: markdown

.github/ISSUE_TEMPLATE/transfer-project-out.yml

@@ -1,6 +1,7 @@
 name: Transfer project out
 description: Transfer a project out of Django Commons.
 labels: ["Transfer project out"]
+title: "🛫 [OUTBOUND] - <project>"
 assignees: 'django-commons/admins'
 body:
   - type: markdown