fix(linux): auto-install managed plugin copy; include in asset updates (#127)

changes/desktop-notification-icons.md

@@ -0,0 +1,4 @@
+type: fixed
+area: notifications
+
+- Restored the SubMiner app icon on system notifications that do not provide a custom notification image.

changes/linux-support-assets-updates-docs.md

@@ -0,0 +1,4 @@
+type: docs
+area: updates
+
+- Documented that Linux update flows manage the launcher runtime plugin copy and rofi theme from `subminer-assets.tar.gz`, and that normal launcher playback auto-installs those managed support assets if either one is missing.

changes/linux-support-assets-updates.md

@@ -0,0 +1,6 @@
+type: fixed
+area: updates
+
+- Fixed Linux updates so the managed support-asset install now creates and refreshes both the launcher runtime plugin copy and the rofi theme alongside AppImage and launcher updates.
+- Fixed Linux support-asset refreshes so unrelated SubMiner data directories are left alone and plugin copies are staged before replacing the live runtime plugin.
+- Fixed first Linux launcher playback on fresh installs by auto-installing the managed runtime plugin copy and rofi theme from the bundled app before mpv starts when either support asset is missing.

changes/overlay-autopause-startup-subtitle.md

@@ -0,0 +1,4 @@
+type: fixed
+area: overlay
+
+- Fixed auto-paused Linux visible overlay startup so the overlay stays interactive during the first measurement gap, startup subtitle cache misses paint raw text before tokenization finishes, and temporarily empty mpv `sub-text` refreshes parsed cues before synthetic warm readiness can resume playback.