Don't list nested addons in remove

[Trojan295]

When we have an addon installed, which has nested addons inside (e.g. CombatMetrics has CombatMetricsFightData), then eso-addons remove shows also the nested addon.
This should not be the case, as only the root addons should be managed.

❯ cargo run list
    Finished dev [unoptimized + debuginfo] target(s) in 0.05s
     Running `target/debug/eso-addons list`
+------------------+-----------+
| Name             | Status    |
+------------------+-----------+
| CombatMetrics    | INSTALLED |
| LibAddonMenu-2.0 | MISSING   |
| LibCombat        | MISSING   |
| LibCustomMenu    | MISSING   |
+------------------+-----------+
❯ ls addons/CombatMetrics/CombatMetricsFightData
CombatMetricsFightData.lua  CombatMetricsFightData.txt
❯ cargo run remove
    Finished dev [unoptimized + debuginfo] target(s) in 0.05s
     Running `target/debug/eso-addons remove`
? Select addon to remove › 
❯ CombatMetricsFightData
  CombatMetrics
Failed to execute: CTRL+C