Add fixup script to work around fluffychat docker image weirdness

abra.sh

@@ -1,2 +1,2 @@
 export CONFIG_JSON_VERSION=v1
-
+export FIXUP_SH_VERSION=v1

compose.yml

@@ -5,13 +5,17 @@ services:
   app:
     image: git.coopcloud.tech/coop-cloud/fluffychat:v1.7.1
     environment:
+      - DOMAIN
       - FLUFFY_APPLICATION_NAME
       - FLUFFY_DEFAULT_HOMESERVER
     networks:
       - proxy
     configs:
       - source: config_json
-        target: /usr/share/nginx/config.json
+        target: /usr/share/nginx/html/config.json
+      - source: fixup_sh
+        target: /docker-entrypoint.d/00-fixup.sh
+        mode: 0555
     deploy:
       restart_policy:
         condition: on-failure
@@ -42,3 +46,7 @@ configs:
     name: ${STACK_NAME}_config_json_${CONFIG_JSON_VERSION}
     file: config.json.tmpl
     template_driver: golang
+  fixup_sh:
+    name: ${STACK_NAME}_fixup_sh_${FIXUP_SH_VERSION}
+    file: fixup.sh
+    

fixup.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Do fixups to the deploy to make up for minor weirdnesses in the FluffyChat image.
+if [ ! -e /usr/share/nginx/html/ ]; then
+    ln -s /usr/share/nginx/html/ /usr/share/nginx/html/web
+fi