Fix CI errors on macOS & Windows

- Run the linter
- Explicitly use cmake for installing olm

deps/cmake/Olm.cmake

-set(OLM_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/patches/olm-CMake-Support.patch)
-
 ExternalProject_Add(
   Olm
 
@@ -20,6 +18,9 @@ ExternalProject_Add(
       ${DEPS_BUILD_DIR}/olm
   BUILD_COMMAND ${CMAKE_COMMAND}
     --build ${DEPS_BUILD_DIR}/olm
-    --config Release)
+    --config Release
+  INSTALL_COMMAND ${CMAKE_COMMAND}
+    --build ${DEPS_BUILD_DIR}/olm
+    --target install)
 
 list(APPEND THIRD_PARTY_DEPS Olm)

src/CommunitiesList.cc

-#include "Cache.h"
 #include "CommunitiesList.h"
+#include "Cache.h"
 #include "Logging.hpp"
 #include "MatrixClient.h"
 
@@ -137,9 +137,9 @@ CommunitiesList::fetchCommunityAvatar(const QString &id, const QString &avatarUr
           opts, [this, opts, id](const std::string &res, mtx::http::RequestErr err) {
                   if (err) {
                           nhlog::net()->warn("failed to download avatar: {} - ({} {})",
-                                           opts.mxc_url,
-                                           mtx::errors::to_string(err->matrix_error.errcode),
-                                           err->matrix_error.error);
+                                             opts.mxc_url,
+                                             mtx::errors::to_string(err->matrix_error.errcode),
+                                             err->matrix_error.error);
                           return;
                   }
 

src/RegisterPage.cc

@@ -248,7 +248,7 @@ RegisterPage::onRegisterButtonClicked()
                           }
 
                           nhlog::net()->warn("failed to register: status_code ({})",
-                                           static_cast<int>(err->status_code));
+                                             static_cast<int>(err->status_code));
 
                           emit registerErrorCb(QString::fromStdString(err->matrix_error.error));
                           emit errorOccurred();