Show and clear active filters

TESTING.md

@@ -159,6 +159,10 @@ xcrun simctl launch booted de.rfc1437.gotcha
       selections persist independently per repository and status persists.
 - [ ] The issue-filter icon uses a neutral color for Open + All Milestones + no
       labels, and the app accent color whenever any non-default filter is set.
+- [ ] In the issue filter panel, the Status, Milestone, and Labels icons use the
+      app accent color independently when their filter is non-default. **Clear
+      Filters** restores Open + All Milestones + no labels, refreshes the rows,
+      returns every filter icon to neutral, and remains cleared after relaunch.
 - [ ] Tap the add button. **New Issue** appears as a native modal with Cancel
       and Save, title and Markdown body fields, multi-select labels, a
       single-select optional milestone, and an optional inline due-date picker.
@@ -252,6 +256,10 @@ xcrun simctl launch booted de.rfc1437.gotcha
       server after relaunch.
 - [ ] The pull-request filter icon uses a neutral color for Open + All
       Milestones and the app accent color whenever either filter is non-default.
+- [ ] In the pull-request filter panel, Status and Milestone icons use the app
+      accent color independently when non-default. **Clear Filters** restores
+      Open + All Milestones, refreshes the rows, returns both icons to neutral,
+      and remains cleared after relaunch.
 - [ ] Each row shows repository/number, title, author/update metadata, comment
       count, and draft/merged state where applicable.
 - [ ] Open a pull request and verify title, metadata, Markdown body, comments,