Update build context in compose files

firefox/docker-compose.yaml

@@ -3,8 +3,7 @@ services:
     image: myvnc/firefox
     container_name: firefox
     restart: unless-stopped
-    build:
-      context: .
+    build: .
     # shm_size: 2gb
     # security_opt:
     #   - seccomp:unconfined

novnc/docker-compose.yaml

@@ -3,8 +3,7 @@ services:
     image: myvnc/novnc
     container_name: novnc
     restart: unless-stopped
-    build:
-      context: .
+    build: .
     ports:
       - ${MYVNC_NOVNC_PORT}:6900
     environment:

plasma/docker-compose.yaml

@@ -3,8 +3,7 @@ services:
     image: myvnc/webtop:plasma
     container_name: kdeplasma
     restart: unless-stopped
-    build:
-      context: .
+    build: .
     environment:
       MYVNC_VNCPASS: ${MYVNC_KDEPLASMA_VNCPASS}
     networks: