Refactor pre-commit hooks to use prek (#976)

* ci: change to prek for pre-commit

* refactor: fix shellcheck warnings for the scripts

* chore: unify whitespace formatting

* nix: add prek to dev shell

quickshell/assets/fonts/inter/README.md

@@ -161,4 +161,3 @@ Inter is a [variable font](https://rsms.me/inter/#variable) and is in addition a
 | Bold                 | Bold Italic          | 700
 | Extra Bold           | Extra Bold Italic    | 800
 | Black                | Black Italic         | 900
-

quickshell/assets/fonts/material-design-icons/LICENSE

@@ -199,4 +199,4 @@
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
-   limitations under the License.
+   limitations under the License.

quickshell/assets/fonts/nerd-fonts/README.md

@@ -45,4 +45,3 @@ Once you narrow down your font choice of family (`Droid Sans`, `Inconsolata`, et
 For more information see: [The FAQ](https://github.com/ryanoasis/nerd-fonts/wiki/FAQ-and-Troubleshooting#which-font)
 
 [SIL-RFN]:http://scripts.sil.org/cms/scripts/page.php?item_id=OFL_web_fonts_and_RFNs#14cbfd4a
-