Feature/website overhaul (#49)

* Reorganize repo
* Overhaul website design and rewrite in NextJS and Typescript
* Delete website-publish.yml

website/content/docs/widget-number.mdx

@@ -0,0 +1,28 @@
+---
+group: Widgets
+title: Number
+weight: 20
+---
+
+The number widget uses an HTML number input, saving the value as a string, integer, or floating point number.
+
+- **Name:** `number`
+- **UI:** HTML [number input](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/number)
+- **Data type:** string by default; configured by `value_type` option
+- **Options:**
+  - `default`: accepts string or number value; defaults to empty string
+  - `value_type`: accepts `int` or `float`; any other value results in saving as a string
+  - `min`: accepts a number for minimum value accepted; unset by default
+  - `max`: accepts a number for maximum value accepted; unset by default
+  - `step`: accepts a number for stepping up/down values in the input; 1 by default
+- **Example:**
+    ```yaml
+    - label: "Puppy Count"
+      title: "puppies"
+      widget: "number"
+      default: 2
+      value_type: "int"
+      min: 1
+      max: 101
+      step: 2
+    ```