Fix unitialized variables

[ceamac]

Compiling with gcc 13 and -O3 -flto found two possibly unitialized variables.

See also: https://bugs.gentoo.org/916722

/var/tmp/portage/app-misc/fastfetch-2.2.1/work/fastfetch-2.2.1/src/modules/wm/wm.c: In function 'ffGenerateWMJsonConfig':
/var/tmp/portage/app-misc/fastfetch-2.2.1/work/fastfetch-2.2.1/src/modules/wm/wm.c:103:48: error: 'defaultOptions.detectPlugin' is used uninitialized [-Werror=uninitialized]
  103 |     if (options->detectPlugin != defaultOptions.detectPlugin)
      |                                                ^
/var/tmp/portage/app-misc/fastfetch-2.2.1/work/fastfetch-2.2.1/src/modules/wm/wm.c:98:66: note: 'defaultOptions' declared here
   98 |     __attribute__((__cleanup__(ffDestroyWMOptions))) FFWMOptions defaultOptions;
      |                                                                  ^
/var/tmp/portage/app-misc/fastfetch-2.2.1/work/fastfetch-2.2.1/src/modules/cpuusage/cpuusage.c: In function 'ffGenerateCPUUsageJsonConfig':
/var/tmp/portage/app-misc/fastfetch-2.2.1/work/fastfetch-2.2.1/src/modules/cpuusage/cpuusage.c:138:44: error: 'defaultOptions.separate' is used uninitialized [-Werror=uninitialized]
  138 |     if (options->separate != defaultOptions.separate)
      |                                            ^
/var/tmp/portage/app-misc/fastfetch-2.2.1/work/fastfetch-2.2.1/src/modules/cpuusage/cpuusage.c:133:78: note: 'defaultOptions' declared here
  133 |     __attribute__((__cleanup__(ffDestroyCPUUsageOptions))) FFCPUUsageOptions defaultOptions;
      |                                                                              ^
lto1: some warnings being treated as errors

[CarterLi]

Warning only reported with -O3? Weird...

Do you need me to cut a hotfix release?

[ceamac]

Yeah, for some reason -O2 doesn't catch this.
And no, this doesn't look urgent, I think we can wait.

Thank you!

[CarterLi]

Okey. Let's wait one day or two. If no other bugs are found, I will cut a release.