Switched fonts to self-hosted (#126)

Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Reviewed-on: #126

Frontend/assets/css/tools/r11form.css

@@ -1,7 +1,14 @@
-@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;700&display=swap');
 @import url('https://necolas.github.io/normalize.css/8.0.1/normalize.css');
 @import url('fontello.css');
 
+@font-face {
+    font-family: "Nunito";
+    src: url('../../fonts/Nunito-VariableFont_wght.ttf') format('truetype');
+}
+
+body {
+    font-weight: 300;
+}
 
 .hyperlink, .hyperlink:visited, .hyperlink:active {
     color: rgb(47, 125, 146);
@@ -54,6 +61,8 @@
 
 .container {
     font-family: 'Nunito', sans-serif;
+    
+
     display: flex;
     justify-content: left;
     width: 100%;
@@ -489,6 +498,14 @@ code {
     line-height: 150%;
 }
 
+h1 {
+    font-weight: 400;
+}
+
+h2 {
+    font-weight: 300;
+}
+
 @media only screen and (max-width: 1024px) {
     .rwd-hideable {
         display: none;