docs: sharable -> shareable (#4120)

Prior to this commit, there were 41 occurrences of "shareable" and 2 of "sharable".
As they all refer to the concept of shareable configs,
I think it would be clearer to use the same form of "shareable"
in all occurrences of the word.

Author: rdimaio

docs/index.md

@@ -23,7 +23,7 @@ hero:
       link: /concepts/commit-conventions
 
 features:
-  - title: Sharable configs
+  - title: Shareable configs
     details: By supporting npm-installed configurations it makes sharing of commit conventions easy.
     icon: 🌏
     link: /concepts/shareable-config

docs/reference/configuration.md

@@ -186,7 +186,7 @@ export default {
 
 :::
 
-More information can be found in the [Concepts – sharable config section](/concepts/shareable-config).
+More information can be found in the [Concepts – shareable config section](/concepts/shareable-config).
 
 ## Parser presets