added snippets

extension.toml

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+id = "latexnips"
+name = "Latex Snippets"
+version = "0.1.1"
+schema_version = 1
+authors = ["Phani Pavan K <kphanipavan@gmail.com>"]
+description = "Common Latex Snippets, common action from overleaf toolbar."
+repository = "https://git.pvnweb.dedyn.io/phanipavank/latexnips"
+snippets = "./snippets/latex.json"

snippets/latex.json

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+{
+    "Insert Figure": {
+        "scope": "latex",
+        "prefix": "\\fig",
+        "body":"\\begin{figure}\n\\centering\n\includegraphics[width=1\\linewidth]{${1:fig_path}}\n\\caption{${2:caption}}\n\label{fig:${3:label}}\n\\end{figure}",
+        "description": "Inserts a figure",
+    }
+}