test(visual): add unclipped activity names visual tests + a11y fixes (#7454)

* test: add unclipped activity names visual tests + a11y fixes

* lint: add additional dictionaries

.cspell.json

@@ -498,7 +498,7 @@
     "specced",
     "countup"
   ],
-  "dictionaries": ["npm", "softwareTerms", "node", "html", "css", "bash", "en_US"],
+  "dictionaries": ["npm", "softwareTerms", "node", "html", "css", "bash", "en_US", "en-gb", "misc"],
   "ignorePaths": [
     "package.json",
     "dist/**",

e2e/tests/visual-a11y/planning.visual.spec.js

@@ -75,7 +75,25 @@ test.describe('Visual - Planning', () => {
       parent: ganttChart.uuid
     });
     await setBoundsToSpanAllActivities(page, examplePlanSmall, ganttChart.url);
-    await percySnapshot(page, `Gantt Chart View (theme: ${theme})`, {
+    await percySnapshot(page, `Gantt Chart View (theme: ${theme}) - Clipped Activity Names`, {
+      scope: snapshotScope
+    });
+
+    // Expand the inspect pane and uncheck the 'Clip Activity Names' option
+    await page.getByRole('button', { name: 'Expand Inspect Pane' }).click();
+    await page.getByRole('tab', { name: 'Config' }).click();
+    await page.getByLabel('Edit Object').click();
+    await page.getByLabel('Clip Activity Names').click();
+
+    // Close the inspect pane and save the changes
+    await page.getByRole('button', { name: 'Collapse Inspect Pane' }).click();
+    await page.getByLabel('Save').click();
+    await page.getByRole('listitem', { name: 'Save and Finish Editing' }).click();
+
+    // Dismiss the notification
+    await page.getByLabel('Dismiss').click();
+
+    await percySnapshot(page, `Gantt Chart View (theme: ${theme}) - Unclipped Activity Names`, {
       scope: snapshotScope
     });
   });
@@ -98,6 +116,28 @@ test.describe('Visual - Planning', () => {
     await percySnapshot(page, `Gantt Chart View w/ draft status (theme: ${theme})`, {
       scope: snapshotScope
     });
+
+    // Expand the inspect pane and uncheck the 'Clip Activity Names' option
+    await page.getByRole('button', { name: 'Expand Inspect Pane' }).click();
+    await page.getByRole('tab', { name: 'Config' }).click();
+    await page.getByLabel('Edit Object').click();
+    await page.getByLabel('Clip Activity Names').click();
+
+    // Close the inspect pane and save the changes
+    await page.getByRole('button', { name: 'Collapse Inspect Pane' }).click();
+    await page.getByLabel('Save').click();
+    await page.getByRole('listitem', { name: 'Save and Finish Editing' }).click();
+
+    // Dismiss the notification
+    await page.getByLabel('Dismiss').click();
+
+    await percySnapshot(
+      page,
+      `Gantt Chart View w/ draft status (theme: ${theme}) - Unclipped Activity Names`,
+      {
+        scope: snapshotScope
+      }
+    );
   });
   // Skipping for https://github.com/nasa/openmct/issues/7421
   // test.afterEach(async ({ page }, testInfo) => {

src/ui/layout/PaneContainer.vue

@@ -29,6 +29,7 @@
         v-if="isCollapsable"
         class="l-pane__collapse-button c-icon-button"
         :name="collapseTitle"
+        :aria-label="collapseTitle"
         :title="collapseTitle"
         @click="toggleCollapse"
       ></button>
@@ -36,6 +37,7 @@
     <button
       class="l-pane__expand-button"
       :name="expandTitle"
+      :aria-label="expandTitle"
       :title="expandTitle"
       @click="toggleCollapse"
     >