fix: theme and language selector that can be open when click to the right of the component

src/app/components/presentationals/language-selector/language-selector.presentational.scss

@@ -25,8 +25,9 @@ dlcm-language-selector {
     position: absolute;
   }
 
-  .mat-form-field {
-    width: 65px;
+  .mat-form-field,
+  .mat-form-field-infix {
+    width: 0;
   }
 
   .mat-select-value {

src/app/components/presentationals/theme-selector/theme-selector.presentational.scss

@@ -18,8 +18,9 @@ dlcm-theme-selector {
     position: absolute;
   }
 
-  .mat-form-field {
-    width: 65px;
+  .mat-form-field,
+  .mat-form-field-infix {
+    width: 0;
   }
 
   .mat-select-value {