Treeview Docs

Added Treeview docs
Improved some stuff in the treeview object

docs/objects/Treeview/findChildrenByText.md

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+## findChildrenByText
+
+### Description
+
+The `findChildrenByText` method allows you to search for all child nodes within a Treeview object that have a specific text value. This can be useful when you need to find nodes based on their text content, such as for searching or filtering purposes.
+
+### Parameters
+
+1. `string` The text value to search for in the child nodes.
+
+### Returns
+
+1. `table` A table containing all child nodes that have the specified text value.
+
+### Usage
+
+* Creates a Treeview, adds multiple child nodes to the root node, and finds all child nodes with the specified text:
+
+```lua
+local basalt = require("basalt")
+
+local mainFrame = basalt.createFrame()
+local treeview = mainFrame:addTreeview()
+
+local rootNode = treeview:getRoot()
+local childNode1 = rootNode.addChild("Child Node 1")
+local childNode2 = rootNode.addChild("Child Node 2")
+local childNode3 = rootNode.addChild("Child Node 1")
+
+-- Find all child nodes with the text "Child Node 1"
+local foundNodes = rootNode.findChildrenByText("Child Node 1")
+
+basalt.autoUpdate()
+```
+
+In this example, a Treeview object is created and added to the mainFrame. The `getRoot` method is used to access the root node, and multiple child nodes are added to it using the `addChild` method. The `findChildrenByText` method is then called on the root node with the text value "Child Node 1" as a parameter, returning a table containing all child nodes with that text value.