Fix css for dark theme

CHANGELOG.md

@@ -12,6 +12,7 @@
 - [#4579](https://github.com/blockscout/blockscout/pull/4579) - Write contract page: Resize inputs; Improve multiplier selector
 
 ### Fixes
+- [#4668](https://github.com/blockscout/blockscout/pull/4668) - Fix css for dark theme
 - [#4654](https://github.com/blockscout/blockscout/pull/4654) - AddressView: Change `@burn_address` to string `0x0000000000000000000000000000000000000000`
 - [#4626](https://github.com/blockscout/blockscout/pull/4626) - Refine view of popup for reverted tx
 - [#4640](https://github.com/blockscout/blockscout/pull/4640) - Token page: fixes in mobile view

apps/block_scout_web/assets/css/components/_btn_no_border.scss

@@ -13,7 +13,7 @@ $btn-no-border-color: $primary !default;
 
 .btn-no-border-transactions {
   background-color: rgba($primary, 0.1) !important;
-  border-color: $btn-no-border-bg;
+  border-color: #00000000 !important;
   align-items: center;
   border-radius: 2px;
   display: flex;

apps/block_scout_web/assets/css/theme/_dark-theme.scss

@@ -1151,5 +1151,14 @@ $dark-stakes-banned-background: #3e314c;
 	}
 }
 .dark-theme-applied .confirmations-label:after {
-    background: .7rem solid $dark-light-bg;
+    border-left: .9rem solid $dark-light-bg;
+}
+
+.dark-theme-applied .i-tooltip-2:hover{
+	color: $labels-dark;
+}
+
+.dark-theme-applied .btn-no-border-transactions {
+	border-color: $dark-primary !important;
+	color: $dark-primary !important;
 }