some webv2 UI polish (#2940)

* style tweaks for Action Button, UserMenu, Modal

* a bunch of misc polish; some around chat

* Prettified Code!

* cleanup

* fix formatting

* Reduce content padding a bit

* some stylesheet cleanup

* fix action button sizing

* Remove action button height completely

---------

Co-authored-by: gingervitis <gingervitis@users.noreply.github.com>
Co-authored-by: Gabe Kangas <gabek@real-ity.com>

web/components/common/UserDropdown/UserDropdown.tsx

@@ -121,7 +121,7 @@ export const UserDropdown: FC<UserDropdownProps> = ({ username: defaultUsername
         />
       )}
     >
-      <div id="user-menu" className={`${styles.root}`}>
+      <div id="user-menu" className={styles.root}>
         <Dropdown overlay={menu} trigger={['click']}>
           <Button type="primary" icon={<UserOutlined className={styles.userIcon} />}>
             <span className={styles.username}>{username}</span>