UI: Add "align-items: centre" to gr-form-styles.section

Some will be noops but others it will fix alignment.

Screenshots: https://imgur.com/a/yilnsNI

Release-Notes: UI: Add "align-items: centre" to gr-form-styles.section
Change-Id: I2c9774239f2818c9317254c1f6440d48429631a8

polygerrit-ui/app/styles/gr-form-styles.ts

diff --git a/polygerrit-ui/app/styles/gr-form-styles.ts b/polygerrit-ui/app/styles/gr-form-styles.ts
index 58a1c74..4792dcf 100644
--- a/polygerrit-ui/app/styles/gr-form-styles.ts
+++ b/polygerrit-ui/app/styles/gr-form-styles.ts
@@ -30,6 +30,7 @@
     display: flex;
     margin: var(--spacing-s) 0;
     min-height: 2em;
+    align-items: center;
   }
   .gr-form-styles section * {
     vertical-align: middle;