FIX: meilisearch style (#211)

* FIX: Heights to the px format

* FIX: The search bar

* FIX:Put the index and search in shared container

---------

Co-authored-by: Jorge Martínez <28702884+jorgepiloto@users.noreply.github.com>

Author: Revathyvenugopal162

src/ansys_sphinx_theme/theme/ansys_sphinx_theme/static/css/meilisearch.css

@@ -53,7 +53,7 @@ div [data-ds-theme] .searchbox input {
 }
 
 #search-bar-input{
-    width: 182%;
+    width: 170%;
     background-color: var(--pst-color-background);
     border: 1px solid var(--pst-color-border);
     border-radius: .25rem;
@@ -77,16 +77,15 @@ div [data-ds-theme] .searchbox input {
 .index-select {
     color: var(--pst-color-text-base);
     background: var(--pst-color-background);
-    height: 3rem;
+    height: 47px;
     border: 1px solid var(--pst-color-border);
     border-radius: .25rem;
     font-size: 20px;
     font-family: "Open Sans", sans-serif;
     box-shadow: 0px 0px 20px var(--pst-color-border);
     padding: 0 10px 0px 10px;
     width: 25%;
-    position: absolute;
-    margin-left: 40rem;
+    margin-left: 5px;
 }
 
 .meilisearch-autocomplete .dsb-dropdown-menu [class^=dsb-dataset-] {