[Enhancement] Provide a list view.

#### Rationale

Currently, reading the full names of fonts is infeasible, for I must hover over them:

Because I primarily utilise a touch-screen, this can be a nuisance. However, I've realsed that even with a mouse, hovering over multiple isn't quick.

#### Desire

Consequently, providing a list view, rather than a grid, would be very useful for me.

#### My Environment

~~~YAML

ID: com.github.fontmatrix.Fontmatrix
Ref: app/com.github.fontmatrix.Fontmatrix/x86_64/stable
Arch: x86_64
Branch: stable
Version: 0.9.100
License: GPL-2.0+
Origin: flathub
Collection: org.flathub.Stable
Installation: system
Installed: 89.6 MB
Runtime: org.kde.Platform/x86_64/5.15-24.08
Sdk: org.kde.Sdk/x86_64/5.15-24.08

Commit: 5466d63f9e6d4ab7ad4a8a928c87f4206e95e203906b4961ffadae89b724cc35
Parent: 468dad10808a72811db7ed8cb340355047583e3c5accdd6baa38070ebfd1a8c9
Subject: Update to runtime 24.08 (c3722a73f3dd)
Date: 2025-06-29 02:09:01 +0000
~~~