Previously, the only way to select all the module labels was with the
following kind of selector:
```css
.modules-left > widget > label,
.modules-center > widget > label,
.modules-right > widget > label {
/* ... */
}
```
(and a matching block for the `box` containers).
Now, this can be expressed as
```css
label.module, box.module {
/* ... */
}
```
Background and Motivation
-------------------------
When the `hwmon-path-abs` and the `input-filename` fields are used for
the temperature module, we evaluated the following path:
```
[hwmon-path-abs] / [gap] / [input-filename]
```
where `gap` is the first file or directory in the `hwmon-path-abs`
directory. This usually works but it doesn't seem to work for NVME or
WiFi temperature sensors. For those cases, there are a bunch of other
files in the `hwmon-path-abs` directory. In the bad case, the first
selected file is not the one with the prefix `hwmon` and we end up
checking the wrong location for the `input-filename`.
Change description
------------------
We are simply going through the `hwmon-path-abs` directory and searching
for the first file/directory that begins with `hwmon`.
Test case
---------
I tested this on a AMD based Framework 13 laptop.
1. Fix warnings reported by clang tidy
2. Use unique lock instead of manully lock/unlock on mutex.
The RAII style locking makes sure mutex is unlocked when exceptions are thrown
1. Utilize `m_mutex` to safeguard member fields of `hyprland::Workspaces` as they are modified by multiple threads, including the event listener thread and UI thread. This applies to all member fields, not just `m_workspacesToCreate`.
2. Tidy up the create/remove workspace code.
This turns the values of window rewrite rules in hyprland/workspaces from static strings to format strings with the values {class} and {title} available.
