🩹(frontend) fine tuning v2.2.0

Fix minor issues:
- Add some height to the carret in the editor
- Improve css in mail templates
- Improve images resolution on homepage

src/mail/mjml/invitation.mjml

@@ -2,7 +2,7 @@
   <mj-include path="./partial/header.mjml" />
 
   <mj-body mj-class="bg--blue-100">
-    <mj-wrapper css-class="wrapper" padding="0 25px 0px 25px">
+    <mj-wrapper css-class="wrapper" padding="5px 25px 0px 25px">
       <mj-section css-class="wrapper-logo">
         <mj-column>
           <mj-image
@@ -14,7 +14,7 @@
           />
         </mj-column>
       </mj-section>
-      <mj-section mj-class="bg--white-100" padding="30px 20px 60px 20px">
+      <mj-section mj-class="bg--white-100" padding="0px 20px 60px 20px">
         <mj-column>
           <mj-text align="center">
             <h1>{{title|capfirst}}</h1>

src/mail/mjml/partial/header.mjml

@@ -13,7 +13,7 @@
         <mj-all
             font-family="Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif"
             font-size="16px"
-            line-height="1.3em"
+            line-height="normal"
             color="#3A3A3A"
         />
     </mj-attributes>