fix: make filter input consistent to other panels filter input

Author: devvaannsh

src/styles/Extn-CustomSnippets.less

@@ -107,7 +107,6 @@
 
 .filter-snippets-panel #filter-snippets-input {
     height: 14px;
-    width: 180px;
     min-width: 120px;
     margin-bottom: 0;
     margin-top: -4px;