feat: add selectTextblockStart and selectTextblockEnd commands

docs/api/commands/select-textblock-end.md

@@ -0,0 +1,5 @@
+# selectTextblockEnd
+
+:::warning
+Oops, we didn’t find time to fill this page. Writing documentation needs attention to detail, a great understanding of the project and time to write. Though Tiptap is used by thousands of developers all around the world, it’s still a side project for us. Let’s change that and make open source our full-time job! [Become a sponsor!](https://github.com/sponsors/ueberdosis)
+:::

docs/api/commands/select-textblock-start.md

@@ -0,0 +1,5 @@
+# selectTextblockStart
+
+:::warning
+Oops, we didn’t find time to fill this page. Writing documentation needs attention to detail, a great understanding of the project and time to write. Though Tiptap is used by thousands of developers all around the world, it’s still a side project for us. Let’s change that and make open source our full-time job! [Become a sponsor!](https://github.com/sponsors/ueberdosis)
+:::

docs/links.yaml

@@ -223,6 +223,12 @@
         - title: selectParentNode
           link: /api/commands/select-parent-node
           type: draft
+        - title: selectTextblockEnd
+          link: /api/commands/select-textblock-end
+          type: draft
+        - title: selectTextblockStart
+          link: /api/commands/select-textblock-start
+          type: draft
         - title: setContent
           link: /api/commands/set-content
         - title: setMark