fix(rofi): normal sorter for fuzzy search + power-profile icons

Two rofi fixes:

- Search (item 31): rofi 2.0.0's fzf sorter mis-ranks fuzzy matches —
  typing "steam" left ghostty selected instead of Steam. Bernardo's live
  A/B confirmed `-sorting-method normal` and `-matching normal` both fix
  it while `-no-sort` does not. Switch sorting-method fzf → normal, keep
  matching=fuzzy + case-sensitive=false.

- Power profile menu (item 39): list profiles with per-profile icons from
  Papirus' colored battery-profile-{performance,balanced,powersave} family
  (the -symbolic variants are #444 grey, invisible on dark). Row text
  stays the bare profile name so `powerprofilesctl set` is unaffected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

agent/BACKLOG.md

@@ -26,23 +26,6 @@ next, in what order*.
 
 ## NEXT
 
-### 31. rofi search broken under rofi 2.0.0 `[bug]`
-(Raised by Bernardo, 2026-07-07.) Typing a lowercase query fails to
-match (`steam` doesn't select **Steam**) and Enter launches the first
-entry instead (ghostty) — i.e. matching behaves case-sensitively and the
-selection never moves off row 0. **Not a missing config key:** the
-generated config already sets `case-sensitive = false`, `matching =
-"fuzzy"`, `sort = true`, `sorting-method = "fzf"`, and `rofi -dump-config`
-shows rofi 2.0.0 honours them (they're its new defaults). The lock bump
-`8fded63` pulled **rofi 2.0.0** (a major version) — this is a 2.0
-behaviour change. Needs interactive repro on a session (can't be
-eyeballed headlessly). Candidate levers to A/B live: `matching`
-(normal/prefix vs fuzzy), `-i`/`case-smart`/`normalize-match` (new 2.0
-knobs), `sort`/`sorting-method`, and the per-modi `sorting-method:"name"`
-default 2.0 shows for drun. Fix once, then bake into
-`programs.rofi.extraConfig`. Covers Bernardo's item 1 (case-insensitive
-search).
-
 ### 32. SUPER+? cheatsheet bind still not opening `[bug]`
 (Raised by Bernardo, 2026-07-07 — item 2.) Item 26's fix (SHIFT in the
 bind modmask so the shifted `question` keysym fires) shipped, but SUPER+?
@@ -50,11 +33,6 @@ still doesn't open the keybindings cheatsheet. Re-diagnose: confirm the
 Hyprland bind's modmask/keysym against the *actual* layout, whether rofi
 2.0.0 changed anything, and that the cheatsheet path still resolves.
 
-### 39. Icons in the power-profile rofi menu
-(Raised by Bernardo, 2026-07-07 — item 9.) The power-profile picker
-(rofi.nix `power-profile`) lists profiles as bare text; add per-profile
-icons (performance/balanced/power-saver) like the other System rows.
-Small.
 
 ### 36. Battery / power quick menu
 (Raised by Bernardo, 2026-07-07 — items "battery toggle in a rofi