core: api and protocol support for reporting messages to group moderators (#5469)

* core: api and protocol support for reporting messages to group moderators

* moderator role

* delete mode

* remove auto-accepting conditions for SimpleX Chat Ltd

* mark as deleted locally

* ui: delete mode type

* store msg_content_tag with chat items, support moderator option on receiving side

* report API

* send reports only to moderators that support them, fail if none support

* fix tests

* test

* remove comment

* revert version

* do not build ghc8107 in stable branch

* skip job

* fix condition

* remove condition

* condition

* exit

* update

.github/workflows/build.yml

@@ -89,7 +89,12 @@ jobs:
             cache_path: C:/cabal
             asset_name: simplex-chat-windows-x86-64
             desktop_asset_name: simplex-desktop-windows-x86_64.msi
+
     steps:
+      - name: Skip unreliable ghc 8.10.7 build on stable branch
+        if: matrix.ghc == '8.10.7' && github.ref == 'refs/heads/stable'
+        run: exit 0
+
       - name: Configure pagefile (Windows)
         if: matrix.os == 'windows-latest'
         uses: al-cheb/configure-pagefile-action@v1.3