Switched fonts to self-hosted (#126)

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

Backend/mocked-services/src/main/resources/static/css/r11tool.css

@@ -1,4 +1,7 @@
-@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;700&display=swap');
+@font-face {
+    font-family: "Nunito";
+    src: url('font/Nunito-VariableFont_wght.ttf') format('truetype');
+}
 
 input {
     box-sizing: border-box;
@@ -98,7 +101,7 @@ body {
 
 .clickable-text.switch {
     font-size: 18px;
-    font-weight: 700;
+    font-weight: 300;
 }
 
 .clickable-text.switch span.toggleIndicator:before {
@@ -295,6 +298,20 @@ body {
     display: none;
 }
 
+h1 {
+    font-weight: 400;
+}
+
+h2 {
+    font-weight: 400;
+}
+
+h3 {
+    font-weight: 400;
+}
+
+
+
 /* TODO: Add proper class */
 /* textarea {
 	-webkit-box-sizing: border-box;