feat(search): add local search (#231)

* feat(search): add local search

* docs: add docs for search

assets/css/_mixin/_compatibility.scss

@@ -0,0 +1,69 @@
+@mixin border-radius($value) {
+  -webkit-border-radius: $value;
+  -moz-border-radius: $value;
+  border-radius: $value;
+}
+
+@mixin box-shadow($value) {
+  -webkit-box-shadow: $value;
+  box-shadow: $value;
+}
+
+@mixin transition($values...) {
+  -webkit-transition: $values;
+  -moz-transition: $values;
+  -o-transition: $values;
+  transition: $values;
+}
+
+@mixin transform($value) {
+  -webkit-transform: $value;
+  -moz-transform: $value;
+  -ms-transform: $value;
+  -o-transform: $value;
+  transform: $value;
+}
+
+@mixin filter($value) {
+  -webkit-filter: $value;
+  -moz-filter: $value;
+  -ms-filter: $value;
+  filter: $value;
+}
+
+@mixin flex($value) {
+  -webkit-flex: $value;
+  flex: $value;
+}
+
+@mixin box($orient) {
+  display: -moz-box;
+  display: -webkit-box;
+  display: box;
+
+  -moz-box-orient: $orient;
+  -webkit-box-orient: $orient;
+  box-orient: $orient;
+}
+
+@mixin placeholder($color) {
+  input::-webkit-input-placeholder{
+    color: $color;
+  }
+
+  input:-moz-placeholder{
+    color: $color;
+  }
+
+  input::-moz-placeholder{
+    color: $color;
+  }
+
+  input:-ms-input-placeholder{
+    color: $color;
+  }
+
+  input::placeholder {
+    color: $color;
+  }
+}