refactor(nvim): split snippets into separate files

Refs: #23

roles/neovim/files/lua/opdavies/snippets/javascript.lua

@@ -0,0 +1,9 @@
+local luasnip = require "luasnip"
+local snippet = luasnip.s
+
+local insert = luasnip.insert_node
+local text = luasnip.text_node
+
+return {
+  snippet({ trig = "log", dscr = "console.log" }, { text "console.log(", insert(1, "value"), text ");" }),
+}

roles/neovim/files/lua/opdavies/snippets/markdown.lua

@@ -0,0 +1,14 @@
+local luasnip = require "luasnip"
+local snippet = luasnip.s
+
+local insert = luasnip.insert_node
+local text = luasnip.text_node
+
+return {
+  snippet({ trig = "frontmatter", dscr = "Document frontmatter" }, {
+    text { "---", "tags: " },
+    insert(1, "value"),
+    text { "", "---", "" },
+    insert(0),
+  }),
+}

roles/neovim/files/lua/opdavies/snippets/php.lua

@@ -0,0 +1,23 @@
+local luasnip = require "luasnip"
+local snippet = luasnip.s
+
+local choice = luasnip.choice_node
+local insert = luasnip.insert_node
+local text = luasnip.text_node
+
+return {
+  snippet({ trig = "test", dscr = "Test block" }, {
+    text { "/* @test **/", "" },
+    text "public function ",
+    choice(1, {
+      text "test",
+      text "it",
+      text "should",
+    }),
+    insert(2), -- The method name.
+    text { "(): void {", "" },
+    text "  ",
+    insert(0), -- The method body.
+    text { "", "}" },
+  }),
+}