chore: align wording in task detail view

Changes only in task detail view. Probably this should be done everywhere:

- some buttons were using the uppercase words consistently, some were not
- some were using articles, some were not  => I removed them everywhere to shorten the label length
- some buttons were refering to the task, some were not. Since we are already in the context of the task (we are not the task detail page) I removed the reference everywhere.

cypress/integration/list/list-view-kanban.spec.js

@@ -176,7 +176,7 @@ describe('List View Kanban', () => {
 			.click()
 
 		cy.get('.task-view .action-buttons .button', { timeout: 3000 })
-			.contains('Move task')
+			.contains('Move')
 			.click()
 		cy.get('.task-view .content.details .field .multiselect.control .input-wrapper input')
 			.type(`${lists[1].title}{enter}`)

cypress/integration/task/task.spec.js

@@ -210,7 +210,7 @@ describe('Task', () => {
 			cy.visit(`/tasks/${tasks[0].id}`)
 
 			cy.get('.task-view .action-buttons .button')
-				.contains('Move task')
+				.contains('Move')
 				.click()
 			cy.get('.task-view .content.details .field .multiselect.control .input-wrapper input')
 				.type(`${lists[1].title}{enter}`)
@@ -237,7 +237,7 @@ describe('Task', () => {
 
 			cy.get('.task-view .action-buttons .button')
 				.should('be.visible')
-				.contains('Delete task')
+				.contains('Delete')
 				.click()
 			cy.get('.modal-mask .modal-container .modal-content .header')
 				.should('contain', 'Delete this task')
@@ -317,7 +317,7 @@ describe('Task', () => {
 			cy.visit(`/tasks/${tasks[0].id}`)
 
 			cy.get('.task-view .action-buttons .button')
-				.contains('Add labels')
+				.contains('Add Labels')
 				.should('be.visible')
 				.click()
 			cy.get('.task-view .details.labels-list .multiselect input')
@@ -344,7 +344,7 @@ describe('Task', () => {
 			cy.visit(`/tasks/${tasks[0].id}`)
 
 			cy.get('.task-view .action-buttons .button')
-				.contains('Add labels')
+				.contains('Add Labels')
 				.click()
 			cy.get('.task-view .details.labels-list .multiselect input')
 				.type(labels[0].title)

src/i18n/lang/en.json

@@ -570,22 +570,22 @@
         "text2": "This will also remove all attachments, reminders and relations associated with this task and cannot be undone!"
       },
       "actions": {
-        "assign": "Assign to a user",
-        "label": "Add labels",
+        "assign": "Assign to User",
+        "label": "Add Labels",
         "priority": "Set Priority",
         "dueDate": "Set Due Date",
-        "startDate": "Set a Start Date",
-        "endDate": "Set an End Date",
+        "startDate": "Set Start Date",
+        "endDate": "Set End Date",
         "reminders": "Set Reminders",
-        "repeatAfter": "Set a repeating interval",
+        "repeatAfter": "Set Repeating Interval",
         "percentDone": "Set Progress",
-        "attachments": "Add attachments",
-        "relatedTasks": "Add task relations",
-        "moveList": "Move task",
-        "color": "Set task color",
-        "delete": "Delete task",
-        "favorite": "Save as favorite",
-        "unfavorite": "Remove from favorites"
+        "attachments": "Add Attachments",
+        "relatedTasks": "Add Relation",
+        "moveList": "Move",
+        "color": "Set Color",
+        "delete": "Delete",
+        "favorite": "Add to Favorites",
+        "unfavorite": "Remove from Favorites"
       }
     },
     "attributes": {