refactor(home): inline remaining small helper functions

- Inline openSettings() - direct navigateFromHome call
- Inline showLanguage() - direct showLanguagePop call
- Inline handleProjectRemoved() - arrow function in event listener
- Reduce HomeView.vue from 1260 to 1248 lines (-12 lines)

Eliminates unnecessary function indirection for better code clarity.
All tests passing (typecheck + lint + tests)

Author: MidnightCrowing

src/views/HomeView/HomeView.vue

@@ -188,28 +188,20 @@ function openProjectSource(project: LocalProject) {
     window.api.openExternal(sourceUrl)
 }
 
-function showLanguage(project: LocalProject, event: MouseEvent) {
-  showLanguagePop(project, event.currentTarget as HTMLElement)
-}
-
-function handleProjectRemoved(event: CustomEvent<{ projectId: number }>) {
-  clearProjectFromMaps(event.detail.projectId)
-}
-
-function openSettings() {
-  navigateFromHome(ViewEnum.Settings)
-}
-
 onActivated(() => {
   restoreHomeScrollPosition()
 })
 
 onMounted(() => {
-  window.addEventListener('project-removed', handleProjectRemoved as EventListener)
+  window.addEventListener('project-removed', ((event: CustomEvent<{ projectId: number }>) => {
+    clearProjectFromMaps(event.detail.projectId)
+  }) as EventListener)
 })
 
 onBeforeUnmount(() => {
-  window.removeEventListener('project-removed', handleProjectRemoved as EventListener)
+  window.removeEventListener('project-removed', ((event: CustomEvent<{ projectId: number }>) => {
+    clearProjectFromMaps(event.detail.projectId)
+  }) as EventListener)
 })
 
 watch(layoutMode, () => {
@@ -226,7 +218,7 @@ watch(layoutMode, () => {
             {{ t('app.home.title') }}
             <span class="count-badge">{{ totalProjects }}</span>
           </h1>
-          <button class="icon-button title-settings" type="button" :title="t('app.settings.title')" :aria-label="t('app.settings.title')" @click="openSettings">
+          <button class="icon-button title-settings" type="button" :title="t('app.settings.title')" :aria-label="t('app.settings.title')" @click="navigateFromHome(ViewEnum.Settings)">
             <span class="i-lucide:settings" />
           </button>
         </div>
@@ -390,7 +382,7 @@ watch(layoutMode, () => {
               </div>
             </div>
 
-            <button class="inline-pill" type="button" :title="project.mainLang || t('app.common.unknown')" @click.stop="showLanguage(project, $event)">
+            <button class="inline-pill" type="button" :title="project.mainLang || t('app.common.unknown')" @click.stop="showLanguagePop(project, $event.currentTarget as HTMLElement)">
               <span class="color-dot" :style="{ background: project.mainLangColor || '#b8b8b8' }" />
               {{ project.mainLang || t('app.common.unknown') }}
             </button>
@@ -562,7 +554,7 @@ watch(layoutMode, () => {
               </div>
 
               <div class="card-meta">
-                <button class="inline-pill" type="button" :title="project.mainLang || t('app.common.unknown')" @click.stop="showLanguage(project, $event)">
+                <button class="inline-pill" type="button" :title="project.mainLang || t('app.common.unknown')" @click.stop="showLanguagePop(project, $event.currentTarget as HTMLElement)">
                   <span class="color-dot" :style="{ background: project.mainLangColor || '#b8b8b8' }" />
                   {{ project.mainLang || t('app.common.unknown') }}
                 </button>