Add site-margin to posts and change theme color

src/app/components/feed/postlist/postlist.component.sass

@@ -17,13 +17,13 @@ $mat-card-header-size: 40px !default
 
   .mat-card-content
     overflow: auto
-    margin: 0
+    margin: 0 1em
     ::ng-deep a
       color: $primary-color
   .mat-card-actions
     padding: 0
 
-  ::ng-deep p 
+  ::ng-deep p
     margin: 0
 
   a:hover

src/manifest.webmanifest

@@ -1,7 +1,7 @@
 {
   "name": "greenvironment",
   "short_name": "greenvironment",
-  "theme_color": "#1976d2",
+  "theme_color": "#8bc34a",
   "background_color": "#fafafa",
   "display": "standalone",
   "scope": "/",