fix various plugins still using outdated Discord classes

src/plugins/clientTheme/clientTheme.css

@@ -16,7 +16,7 @@
 }
 
 .vc-clientTheme-container [class^="swatch"] {
-    border: thin solid var(--background-modifier-accent) !important;
+    border: thin solid var(--input-border) !important;
 }
 
 .vc-clientTheme-buttons-container {

src/plugins/reviewDB/style.css

@@ -123,7 +123,7 @@
     display: block;
     width: 100%;
     height: 100%;
-    background-color: var(--background-modifier-accent);
+    background-color: var(--border-subtle);
 }
 
 .vc-rdb-block-modal-username {

src/plugins/sendTimestamps/styles.css

@@ -15,11 +15,11 @@
 .vc-st-format-select {
     margin-bottom: 1em;
 
-    --background-modifier-accent: transparent;
+    --border-subtle: transparent;
 }
 
 .vc-st-format-label {
-    --background-modifier-accent: transparent;
+    --border-subtle: transparent;
 }
 
 .vc-st-modal-header {

src/plugins/serverInfo/styles.css

@@ -38,7 +38,7 @@
 }
 
 .vc-gp-tab-bar {
-    border-bottom: 2px solid var(--background-modifier-accent);
+    border-bottom: 1px solid var(--border-subtle);
     margin: 20px 12px 0;
     display: flex;
     gap: 40px;

src/plugins/spotifyControls/spotifyStyles.css

@@ -1,6 +1,6 @@
 #vc-spotify-player {
     padding: 0.375rem 0.5rem;
-    border-bottom: 1px solid var(--background-modifier-accent);
+    border-bottom: 1px solid var(--border-subtle);
 
     --vc-spotify-green: var(--spotify, #1db954); /* so custom themes can easily change it */
     --vc-spotify-green-90: color-mix(in hsl, var(--vc-spotify-green), transparent 90%);