[M115][Files]: Eliminate extra space between trash and options

In crrev.com/4521362 in order to hide search in trash while preserving
transition events the display: none was replaced with visibility: none.
This however upsets the layout of the files. In this CL we force the
button to occupy no additional space.
Video: http://screencast/cast/NTQ1NjgzMjgxOTYyNTk4NHw4OTMzZTdjMi1mZg

(cherry picked from commit 9bc6e51)

Bug: b:283932818
Change-Id: I2f8d2a750f26442c57beecb265239a443ac2f7cf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4564176
Reviewed-by: Wenbo Jie <wenbojie@chromium.org>
Commit-Queue: Bo Majewski <majewski@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1148924}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4569965
Cr-Commit-Position: refs/branch-heads/5790@{#211}
Cr-Branched-From: 1d71a33-refs/heads/main@{#1148114}

ui/file_manager/file_manager/foreground/css/file_manager.css

@@ -807,7 +807,12 @@ body.check-select #cancel-selection-button-wrapper {
 
 /* Search button */
 body.check-select-v1 #search-button {
+  border: 0;
+  margin: 0;
+  min-width: 0;
+  padding: 0;
   visibility: hidden;
+  width: 0;
 }
 
 /* Search box */
@@ -828,6 +833,10 @@ body.check-select-v1 #search-button {
   caret-color: var(--cr-input-color);
 }
 
+body.check-select-v1 #search-box {
+  visibility: hidden;
+}
+
 .dialog-header.files-ng #search-box.has-cursor,
 .dialog-header.files-ng #search-box.has-text,
 .dialog-header.files-ng #search-box.hide-pending {

ui/file_manager/file_manager/foreground/css/file_manager_gm3.css

@@ -655,7 +655,12 @@ body.check-select #cancel-selection-button-wrapper {
 
 /* Search button */
 body.check-select-v1 #search-button {
+  border: 0;
+  margin: 0;
+  min-width: 0;
+  padding: 0;
   visibility: hidden;
+  width: 0;
 }
 
 /* Search box */
@@ -670,6 +675,10 @@ body.check-select-v1 #search-button {
   margin-inline-end: 16px;
 }
 
+body.check-select-v1 #search-box {
+  visibility: hidden;
+}
+
 .dialog-header.files-ng #search-box.has-cursor,
 .dialog-header.files-ng #search-box.has-text,
 .dialog-header.files-ng #search-box.hide-pending {