feat(entries): move the reveal eye inside the custom-field value

Same placement as the TOTP field, which buys back a column on a dense row: label | value (eye inside) | copy | menu. Pinned top-right on a multiline field so it stays clear of the resize grip.

css/style.css

@@ -1592,12 +1592,28 @@ input[type="range"]::-webkit-slider-thumb {
     margin-top: 6px;
 }
 .so-custom-row {
-    /* label | value | eye | copy | row menu */
+    /* label | value (eye inside) | copy | row menu */
     display: grid;
-    grid-template-columns: 1fr 1.4fr auto auto auto;
+    grid-template-columns: 1fr 1.4fr auto auto;
     gap: 4px;
     align-items: center;
 }
+/* The reveal eye sits inside the field, like the TOTP one. */
+.so-custom-value-wrap { position: relative; display: flex; min-width: 0; }
+.so-custom-value-wrap > .so-input,
+.so-custom-value-wrap > .so-combo { width: 100%; }
+.so-custom-value-wrap > .so-input { padding-right: 28px; }
+.so-custom-value-eye {
+    position: absolute;
+    right: 3px;
+    top: 50%;
+    transform: translateY(-50%);
+}
+/* Multiline: pin it to the top corner, clear of the resize grip. */
+.so-custom-value-wrap.is-multiline .so-custom-value-eye {
+    top: 3px;
+    transform: none;
+}
 /* The row menu is absolutely positioned inside its wrap; without this the
    slideover clips it or it lands under the next row. */
 .so-custom-row .entry-kebab-wrap { position: relative; }
@@ -1651,9 +1667,10 @@ input[type="range"]::-webkit-slider-thumb {
 .so-combo-item:hover { background: var(--accent); color: #fff; }
 /* The eye carries the secret state itself — a second toggle beside it read as
    a duplicate of the reveal. Flipping the flag lives in the row menu. */
+/* Cyan marker = the field is STORED as a secret, not merely hidden right now. */
 .so-custom-row .icon-btn.is-secret {
-    background: var(--accent-soft);
     color: var(--accent);
+    background: var(--accent-soft);
     border: 1px solid var(--accent);
     border-radius: 4px;
 }