Improved input size consistency

Specifically updates dropdown search and user-search implementation,
although does affect all inputs.
Decouples breadcrum and select-style dropdown search toggles.

Addresses #2678

resources/sass/_components.scss

@@ -731,6 +731,55 @@ body.flexbox-support #entity-selector-wrap .popup-body .form-group {
   }
 }
 
+
+.dropdown-search {
+  position: relative;
+}
+.dropdown-search-toggle-breadcrumb {
+  border: 1px solid transparent;
+  border-radius: 4px;
+  line-height: normal;
+  padding: $-xs;
+  &:hover {
+    border-color: #DDD;
+  }
+  .svg-icon {
+    margin-inline-end: 0;
+  }
+}
+.dropdown-search-toggle-select {
+  display: flex;
+  gap: $-s;
+  line-height: normal;
+  .svg-icon {
+    height: 16px;
+    margin: 0;
+  }
+  .avatar {
+    height: 22px;
+    width: 22px;
+  }
+  .avatar + span {
+    max-width: 100%;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+  .dropdown-search-toggle-caret {
+    font-size: 1.15rem;
+  }
+}
+.dropdown-search-toggle-select-label {
+  min-width: 0;
+  white-space: nowrap;
+}
+.dropdown-search-toggle-select-caret {
+  font-size: 1.5rem;
+  line-height: 0;
+  margin-left: auto;
+  margin-top: -2px;
+}
+
 .dropdown-search-dropdown {
   box-shadow: $bs-med;
   overflow: hidden;
@@ -789,10 +838,4 @@ body.flexbox-support #entity-selector-wrap .popup-body .form-group {
   .dropdown-search-dropdown .dropdown-search-list {
     max-height: 240px;
   }
-}
-
-.custom-select-input {
-  max-width: 280px;
-  border: 1px solid #D4D4D4;
-  border-radius: 3px;
 }

resources/sass/_forms.scss

@@ -7,7 +7,8 @@
   @include lightDark(color, #666, #AAA);
   display: inline-block;
   font-size: $fs-m;
-  padding: $-xs*1.5;
+  padding: $-xs*1.8;
+  height: 40px;
   width: 250px;
   max-width: 100%;
 
@@ -373,6 +374,7 @@ input[type=color] {
     max-width: 840px;
     margin: 0 auto;
     border: none;
+    height: auto;
   }
 }
 
@@ -413,9 +415,11 @@ div[editor-type="markdown"] .title-input.page-title input[type="text"] {
   }
   input {
     display: block;
+    padding: $-xs * 1.5;
     padding-inline-start: $-l + 4px;
     width: 300px;
     max-width: 100%;
+    height: auto;
   }
   &.flexible input {
     width: 100%;

resources/sass/_header.scss

@@ -86,6 +86,8 @@ header .search-box {
     border-radius: 40px;
     color: #EEE;
     z-index: 2;
+    height: auto;
+    padding: $-xs*1.5;
     padding-inline-start: 40px;
     &:focus {
       outline: none;
@@ -279,29 +281,6 @@ header .search-box {
   }
 }
 
-.dropdown-search {
-  position: relative;
-  .dropdown-search-toggle {
-    padding: $-xs;
-    border: 1px solid transparent;
-    border-radius: 4px;
-    &:hover {
-      border-color: #DDD;
-    }
-  }
-  .svg-icon {
-    margin-inline-end: 0;
-  }
-}
-
-.dropdown-search-toggle.compact {
-  padding: $-xxs $-xs;
-  .avatar {
-    height: 22px;
-    width: 22px;
-  }
-}
-
 .faded {
   a, button, span, span > div {
     color: #666;

resources/sass/_layout.scss

@@ -155,6 +155,13 @@ body.flexbox {
   }
 }
 
+.gap-m {
+  gap: $-m;
+}
+
+.justify-flex-start {
+  justify-content: flex-start;
+}
 .justify-flex-end {
   justify-content: flex-end;
 }