Remove priority icon from issue rows across the app

Priority is still supported as a feature (editable in issue properties,
used in filters), but no longer shown prominently in every issue row.
Affects inbox, issues list, my issues, and dashboard pages.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

ui/src/components/IssueRow.tsx

@@ -2,7 +2,6 @@ import type { ReactNode } from "react";
 import type { Issue } from "@paperclipai/shared";
 import { Link } from "@/lib/router";
 import { cn } from "../lib/utils";
-import { PriorityIcon } from "./PriorityIcon";
 import { StatusIcon } from "./StatusIcon";
 
 type UnreadState = "hidden" | "visible" | "fading";
@@ -61,9 +60,6 @@ export function IssueRow({
           ) : null}
           {desktopMetaLeading ?? (
             <>
-              <span className="hidden sm:inline-flex">
-                <PriorityIcon priority={issue.priority} />
-              </span>
               <span className="hidden shrink-0 sm:inline-flex">
                 <StatusIcon status={issue.status} />
               </span>

ui/src/components/IssuesList.tsx

@@ -680,9 +680,6 @@ export function IssuesList({
                   )}
                   desktopMetaLeading={(
                     <>
-                      <span className="hidden sm:inline-flex">
-                        <PriorityIcon priority={issue.priority} />
-                      </span>
                       <span
                         className="hidden shrink-0 sm:inline-flex"
                         onClick={(e) => {