[US TRTL-541] set font to all material in front common theme

ui/ui-frontend/projects/referential/src/sass/styles.scss

-
-@import "~@angular/material/prebuilt-themes/indigo-pink.css";
-@import "~material-design-icons/iconfont/material-icons.css";
-
-@import url("https://fonts.googleapis.com/css?family=Mulish");
-
 @import "~ui-frontend-common/sass/icons/vitamui-icons.css";
 @import "~ui-frontend-common/sass/theme";
 
@@ -11,7 +5,6 @@ $grid-gutter-width: 20px;
 
 @import "~bootstrap/scss/bootstrap-grid";
 
-@import "material-theme";
 @import "form";
 @import "login";
 @import "sidepanel";

ui/ui-frontend/projects/starter-kit/src/app/components/inputs/inputs.component.scss

@@ -8,7 +8,7 @@
     .layer {
         width: 33px;
         height: 39px;
-        font-family: 'Mulish', sans-serif;
+        
         font-size: 30px;
         font-weight: normal;
         font-style: normal;

ui/ui-frontend/projects/starter-kit/src/sass/styles.scss

-@import '~@angular/material/prebuilt-themes/indigo-pink.css';
-@import '~material-design-icons/iconfont/material-icons.css';
-
 @import '~ui-frontend-common/sass/icons/vitamui-icons.css';
 @import '~ui-frontend-common/sass/theme';
 

ui/ui-frontend/projects/vitamui-library/src/lib/components/vitamui-input/vitamui-input.component.scss

@@ -73,7 +73,7 @@ input {
     color: var(--vitamui-grey-900);
     font-size: 15px;
     font-weight: 500;
-    font-family: 'Mulish', sans-serif;
+    
     background: none;
     border: none;
     transition: margin $anim-timing;

ui/ui-frontend/projects/vitamui-library/src/sass/_date-filter.scss

@@ -8,7 +8,7 @@
     background-color: $white;
     border: solid 1px var(--vitamui-secondary);
     border-radius: 5px;
-    font-family: 'Mulish', sans-serif;
+    
     font-size: 15px;
     text-align: center;
     color: var(--vitamui-secondary);