fix v1.30.1: space gear visible in every mode + vertical alignment

- cog next to the space name shows in View/Plan/Devices (canEdit only);
  '+' add-space tab stays Plan-only
- tabs flex-centered so the cog aligns with the tab text
- smoke_gear_tabs.mjs; TESTING.md + CHANGELOG same-commit

src/styles.ts

@@ -80,6 +80,8 @@ export const cardStyles = css`
       border: 0;
       background: transparent;
       color: var(--hp-muted);
+      display: inline-flex;
+      align-items: center;
       padding: 6px 13px;
       border-radius: 8px;
       font-size: 13px;
@@ -670,9 +672,10 @@ export const cardStyles = css`
     }
     .tab .tabedit {
       --mdc-icon-size: 13px;
+      display: inline-flex;
+      align-items: center;
       margin-left: 6px;
       opacity: 0.4;
-      vertical-align: middle;
     }
     .tab:hover .tabedit {
       opacity: 0.9;